<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by CompSci Transform (tm) - http://www.compsciresources.com -->
<!-- Created: Mon Sep 29 16:56:36 UTC 2025 -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ConsolidatedBalanceSheet" roleURI="http://bitdeertechnologiesgroup.com/role/ConsolidatedBalanceSheet"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ConsolidatedIncomeStatement" roleURI="http://bitdeertechnologiesgroup.com/role/ConsolidatedIncomeStatement"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ShareholdersEquityType2or3" roleURI="http://bitdeertechnologiesgroup.com/role/ShareholdersEquityType2or3"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ConsolidatedCashFlow" roleURI="http://bitdeertechnologiesgroup.com/role/ConsolidatedCashFlow"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_Organization" roleURI="http://bitdeertechnologiesgroup.com/role/Organization"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_BasisofPreparation" roleURI="http://bitdeertechnologiesgroup.com/role/BasisofPreparation"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_SignificantAccountingPolicies" roleURI="http://bitdeertechnologiesgroup.com/role/SignificantAccountingPolicies"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_UseofJudgmentsandEstimates" roleURI="http://bitdeertechnologiesgroup.com/role/UseofJudgmentsandEstimates"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_FinancialRiskManagementandFairValuesofFinancialInstruments" roleURI="http://bitdeertechnologiesgroup.com/role/FinancialRiskManagementandFairValuesofFinancialInstruments"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_BusinessCombination" roleURI="http://bitdeertechnologiesgroup.com/role/BusinessCombination"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_RevenueandContractBalances" roleURI="http://bitdeertechnologiesgroup.com/role/RevenueandContractBalances"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_SegmentInformation" roleURI="http://bitdeertechnologiesgroup.com/role/SegmentInformation"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_CashCashEquivalentsandRestrictedCash" roleURI="http://bitdeertechnologiesgroup.com/role/CashCashEquivalentsandRestrictedCash"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_Cryptocurrencies" roleURI="http://bitdeertechnologiesgroup.com/role/Cryptocurrencies"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_PrepaymentsandOtherAssets" roleURI="http://bitdeertechnologiesgroup.com/role/PrepaymentsandOtherAssets"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_Inventories" roleURI="http://bitdeertechnologiesgroup.com/role/Inventories"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_FinancialAssetsatFairValuethroughProfitorLoss" roleURI="http://bitdeertechnologiesgroup.com/role/FinancialAssetsatFairValuethroughProfitorLoss"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_MiningRigs" roleURI="http://bitdeertechnologiesgroup.com/role/MiningRigs"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_PropertyPlantandEquipment" roleURI="http://bitdeertechnologiesgroup.com/role/PropertyPlantandEquipment"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_InvestmentProperties" roleURI="http://bitdeertechnologiesgroup.com/role/InvestmentProperties"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_IntangibleAssetsandGoodwill" roleURI="http://bitdeertechnologiesgroup.com/role/IntangibleAssetsandGoodwill"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_Leases" roleURI="http://bitdeertechnologiesgroup.com/role/Leases"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_Borrowings" roleURI="http://bitdeertechnologiesgroup.com/role/Borrowings"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_DerivativeLiabilities" roleURI="http://bitdeertechnologiesgroup.com/role/DerivativeLiabilities"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_OtherPayablesandAccruals" roleURI="http://bitdeertechnologiesgroup.com/role/OtherPayablesandAccruals"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ExpensesbyNatureandOtherIncomeandExpensesItems" roleURI="http://bitdeertechnologiesgroup.com/role/ExpensesbyNatureandOtherIncomeandExpensesItems"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ShareBasedPayments" roleURI="http://bitdeertechnologiesgroup.com/role/ShareBasedPayments"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_Equity" roleURI="http://bitdeertechnologiesgroup.com/role/Equity"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_Taxation" roleURI="http://bitdeertechnologiesgroup.com/role/Taxation"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_RelatedPartyTransactions" roleURI="http://bitdeertechnologiesgroup.com/role/RelatedPartyTransactions"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_EarningsLossPerShare" roleURI="http://bitdeertechnologiesgroup.com/role/EarningsLossPerShare"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_SupplementalCashFlowInformation" roleURI="http://bitdeertechnologiesgroup.com/role/SupplementalCashFlowInformation"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_SubsequentEvents" roleURI="http://bitdeertechnologiesgroup.com/role/SubsequentEvents"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_AccountingPoliciesByPolicy" roleURI="http://bitdeertechnologiesgroup.com/role/AccountingPoliciesByPolicy"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_FinancialRiskManagementandFairValuesofFinancialInstrumentsTables" roleURI="http://bitdeertechnologiesgroup.com/role/FinancialRiskManagementandFairValuesofFinancialInstrumentsTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_BusinessCombinationTables" roleURI="http://bitdeertechnologiesgroup.com/role/BusinessCombinationTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_RevenueandContractBalancesTables" roleURI="http://bitdeertechnologiesgroup.com/role/RevenueandContractBalancesTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_SegmentInformationTables" roleURI="http://bitdeertechnologiesgroup.com/role/SegmentInformationTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_CashCashEquivalentsandRestrictedCashTables" roleURI="http://bitdeertechnologiesgroup.com/role/CashCashEquivalentsandRestrictedCashTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_CryptocurrenciesTables" roleURI="http://bitdeertechnologiesgroup.com/role/CryptocurrenciesTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_PrepaymentsandOtherAssetsTables" roleURI="http://bitdeertechnologiesgroup.com/role/PrepaymentsandOtherAssetsTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_InventoriesTables" roleURI="http://bitdeertechnologiesgroup.com/role/InventoriesTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_FinancialAssetsatFairValuethroughProfitorLossTables" roleURI="http://bitdeertechnologiesgroup.com/role/FinancialAssetsatFairValuethroughProfitorLossTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_MiningRigsTables" roleURI="http://bitdeertechnologiesgroup.com/role/MiningRigsTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_PropertyPlantandEquipmentTables" roleURI="http://bitdeertechnologiesgroup.com/role/PropertyPlantandEquipmentTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_InvestmentPropertiesTables" roleURI="http://bitdeertechnologiesgroup.com/role/InvestmentPropertiesTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_IntangibleAssetsandGoodwillTables" roleURI="http://bitdeertechnologiesgroup.com/role/IntangibleAssetsandGoodwillTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_LeasesTables" roleURI="http://bitdeertechnologiesgroup.com/role/LeasesTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_BorrowingsTables" roleURI="http://bitdeertechnologiesgroup.com/role/BorrowingsTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_DerivativeLiabilitiesTables" roleURI="http://bitdeertechnologiesgroup.com/role/DerivativeLiabilitiesTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_OtherPayablesandAccrualsTables" roleURI="http://bitdeertechnologiesgroup.com/role/OtherPayablesandAccrualsTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ExpensesbyNatureandOtherIncomeandExpensesItemsTables" roleURI="http://bitdeertechnologiesgroup.com/role/ExpensesbyNatureandOtherIncomeandExpensesItemsTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ShareBasedPaymentsTables" roleURI="http://bitdeertechnologiesgroup.com/role/ShareBasedPaymentsTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_EquityTables" roleURI="http://bitdeertechnologiesgroup.com/role/EquityTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_TaxationTables" roleURI="http://bitdeertechnologiesgroup.com/role/TaxationTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_RelatedPartyTransactionsTables" roleURI="http://bitdeertechnologiesgroup.com/role/RelatedPartyTransactionsTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_EarningsLossPerShareTables" roleURI="http://bitdeertechnologiesgroup.com/role/EarningsLossPerShareTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_SupplementalCashFlowInformationTables" roleURI="http://bitdeertechnologiesgroup.com/role/SupplementalCashFlowInformationTables"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofMaturityProfileoftheGroupsFinancialLiabilitiesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofMaturityProfileoftheGroupsFinancialLiabilitiesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofFinancialInstrumentsMeasuredatFairValueTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofFinancialInstrumentsMeasuredatFairValueTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofFinancialInstrumentsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofFinancialInstrumentsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillTable_Parentheticals" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillTable_Parentheticals"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofKeyInputsUsedintheModelforDeterminingtheValueoftheOptionTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofKeyInputsUsedintheModelforDeterminingtheValueoftheOptionTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofAssetsandLiabilitiesRecognisedTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofAssetsandLiabilitiesRecognisedTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofDerivesRevenuesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofDerivesRevenuesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofRevenueConcentrationTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofRevenueConcentrationTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofDisaggregatedRevenueTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofDisaggregatedRevenueTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofBreakdownofCashAndCashEquivalentsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofBreakdownofCashAndCashEquivalentsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofStandbyLettersofCreditsSLCsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofStandbyLettersofCreditsSLCsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofGroupsCryptocurrenciesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofGroupsCryptocurrenciesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofDetailsofCryptocurrenciesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofDetailsofCryptocurrenciesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofPrepaymentsandOtherAssetsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofPrepaymentsandOtherAssetsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofInventoriesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofInventoriesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofFinancialAssetsatFairValuethroughProfitorLossTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofFinancialAssetsatFairValuethroughProfitorLossTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofMiningRigsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofMiningRigsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofPropertyPlantandEquipmentTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofPropertyPlantandEquipmentTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofInvestmentPropertiesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofInvestmentPropertiesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofLeasePaymentsReceivableUnderOperatingLeasesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofLeasePaymentsReceivableUnderOperatingLeasesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofIntangibleAssetsandGoodwillTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofIntangibleAssetsandGoodwillTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofRightofUseAssetsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofRightofUseAssetsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofProvisionforRestorationTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofProvisionforRestorationTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofLeaseLiabilitiesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofLeaseLiabilitiesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofRecognizedProfitorLossTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofRecognizedProfitorLossTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofBorrowingsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofBorrowingsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofReconcilestheCarryingValueofConvertibleSeniorNotesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofReconcilestheCarryingValueofConvertibleSeniorNotesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofRepresentstheMovementofDerivativeLiabilitiesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofRepresentstheMovementofDerivativeLiabilitiesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofDerivativeLiabilitiesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofDerivativeLiabilitiesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofValueofDerivativeLiabilityTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofValueofDerivativeLiabilityTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofModelIncorporatestheFollowingKeyInputsandAssumptionsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofModelIncorporatestheFollowingKeyInputsandAssumptionsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofOtherPayablesandAccrualsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofOtherPayablesandAccrualsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofExpensesbyNatureTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofExpensesbyNatureTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofOtherOperatingIncomeExpensesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofOtherOperatingIncomeExpensesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofOtherNetGainsLossesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofOtherNetGainsLossesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofFinanceIncomeExpensesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofFinanceIncomeExpensesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofNumberofSharesandWeightedAverageExercisePricesandMovementsofShareAwardsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofNumberofSharesandWeightedAverageExercisePricesandMovementsofShareAwardsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofShareBasedCompensationExpenseTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofShareBasedCompensationExpenseTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofProvidestheInputsRangeTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofProvidestheInputsRangeTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleoftheMovementsofSharesandShareCapitalTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleoftheMovementsofSharesandShareCapitalTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofProvisionsforIncomeTaxesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofProvisionsforIncomeTaxesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofDeferredTaxLiabilitiesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofDeferredTaxLiabilitiesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofMovementsintheNetDeferredTaxLiabilitiesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofMovementsintheNetDeferredTaxLiabilitiesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofDeductibleTemporaryDifferencesandaPortionoftheTaxLossCarryForwardTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofDeductibleTemporaryDifferencesandaPortionoftheTaxLossCarryForwardTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofCompensationforkeyManagementandBoardofDirectorsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofCompensationforkeyManagementandBoardofDirectorsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofRelatedPartyBalancesandTransactionsTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofRelatedPartyBalancesandTransactionsTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofBasicandDilutedLossPerOrdinaryShareTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofBasicandDilutedLossPerOrdinaryShareTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ScheduleofNonCashInvestingandFinancingActivitiesTable" roleURI="http://bitdeertechnologiesgroup.com/role/ScheduleofNonCashInvestingandFinancingActivitiesTable"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_FinancialRiskManagementandFairValuesofFinancialInstrumentsDetails" roleURI="http://bitdeertechnologiesgroup.com/role/FinancialRiskManagementandFairValuesofFinancialInstrumentsDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_BusinessCombinationDetails" roleURI="http://bitdeertechnologiesgroup.com/role/BusinessCombinationDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_RevenueandContractBalancesDetails" roleURI="http://bitdeertechnologiesgroup.com/role/RevenueandContractBalancesDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_SegmentInformationDetails" roleURI="http://bitdeertechnologiesgroup.com/role/SegmentInformationDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_CashCashEquivalentsandRestrictedCashDetails" roleURI="http://bitdeertechnologiesgroup.com/role/CashCashEquivalentsandRestrictedCashDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_PrepaymentsandOtherAssetsDetails" roleURI="http://bitdeertechnologiesgroup.com/role/PrepaymentsandOtherAssetsDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_InventoriesDetails" roleURI="http://bitdeertechnologiesgroup.com/role/InventoriesDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_MiningRigsDetails" roleURI="http://bitdeertechnologiesgroup.com/role/MiningRigsDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_PropertyPlantandEquipmentDetails" roleURI="http://bitdeertechnologiesgroup.com/role/PropertyPlantandEquipmentDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_InvestmentPropertiesDetails" roleURI="http://bitdeertechnologiesgroup.com/role/InvestmentPropertiesDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_LeasesDetails" roleURI="http://bitdeertechnologiesgroup.com/role/LeasesDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_BorrowingsDetails" roleURI="http://bitdeertechnologiesgroup.com/role/BorrowingsDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_DerivativeLiabilitiesDetails" roleURI="http://bitdeertechnologiesgroup.com/role/DerivativeLiabilitiesDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_ShareBasedPaymentsDetails" roleURI="http://bitdeertechnologiesgroup.com/role/ShareBasedPaymentsDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_EquityDetails" roleURI="http://bitdeertechnologiesgroup.com/role/EquityDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_TaxationDetails" roleURI="http://bitdeertechnologiesgroup.com/role/TaxationDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_RelatedPartyTransactionsDetails" roleURI="http://bitdeertechnologiesgroup.com/role/RelatedPartyTransactionsDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_EarningsLossPerShareDetails" roleURI="http://bitdeertechnologiesgroup.com/role/EarningsLossPerShareDetails"/>
  <roleRef xlink:type="simple" xlink:href="btdr-20250630.xsd#btdr_r_SubsequentEventsDetails" roleURI="http://bitdeertechnologiesgroup.com/role/SubsequentEventsDetails"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all"/>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ConsolidatedBalanceSheet" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_StatementOfFinancialPositionAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfFinancialPositionAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CashAndCashEquivalents" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentRestrictedCashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CurrentRestrictedCashAndCashEquivalents" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_Cryptocurrencies" xlink:href="btdr-20250630.xsd#btdr_Cryptocurrencies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="btdr_Cryptocurrencies" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentTradeReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTradeReceivables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CurrentTradeReceivables" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncomeOtherThanCurrentContractAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncomeOtherThanCurrentContractAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncomeOtherThanCurrentContractAssets" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Inventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Inventories"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_Inventories" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CurrentAssets" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentRestrictedCashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncomeIncludingNoncurrentContractAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncomeIncludingNoncurrentContractAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncomeIncludingNoncurrentContractAssets" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MiningAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MiningAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_MiningAssets" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RightofuseAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_RightofuseAssets" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_PropertyPlantAndEquipment" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentProperty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_InvestmentProperty" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_IntangibleAssetsOtherThanGoodwill" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Goodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Goodwill"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_Goodwill" order="17" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_DeferredTaxAssets" order="18" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_NoncurrentAssets" order="19" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Assets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Assets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_Assets" order="20" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" order="21" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherCurrentPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentPayables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_OtherCurrentPayables" order="22" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" order="23" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentTaxLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CurrentTaxLiabilities" order="24" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDerivativeFinancialLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CurrentDerivativeFinancialLiabilities" order="25" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentContractLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentContractLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CurrentContractLiabilities" order="26" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ShorttermBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_ShorttermBorrowings" order="27" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ShorttermBorrowingsFromARelatedParty" xlink:href="btdr-20250630.xsd#btdr_ShorttermBorrowingsFromARelatedParty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="btdr_ShorttermBorrowingsFromARelatedParty" order="28" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CurrentLeaseLiabilities" order="29" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CurrentLiabilities" order="30" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherNoncurrentPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentPayables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_OtherNoncurrentPayables" order="31" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentContractLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentContractLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_NoncurrentContractLiabilities" order="32" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LongtermBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LongtermBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_LongtermBorrowings" order="33" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LongtermBorrowingsFromARelatedParty" xlink:href="btdr-20250630.xsd#btdr_LongtermBorrowingsFromARelatedParty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="btdr_LongtermBorrowingsFromARelatedParty" order="34" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_NoncurrentLeaseLiabilities" order="35" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_DeferredTaxLiabilities" order="36" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_NoncurrentLiabilities" order="37" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Liabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Liabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_Liabilities" order="38" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NetAssetsLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NetAssetsLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_NetAssetsLiabilities" order="39" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IssuedCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapital"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_IssuedCapital" order="40" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TreasuryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TreasuryShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_TreasuryShares" order="41" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RetainedEarnings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetainedEarnings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_RetainedEarnings" order="42" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CapitalReserve" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CapitalReserve"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_CapitalReserve" order="43" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Equity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_Equity" order="44" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ConsolidatedIncomeStatement" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeStatementAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeStatementAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Revenue" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Revenue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_Revenue" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CostOfSales" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CostOfSales"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_CostOfSales" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GrossProfit" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossProfit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_GrossProfit" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_SellingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SellingExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_SellingExpense" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GeneralAndAdministrativeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeneralAndAdministrativeExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_GeneralAndAdministrativeExpense" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ResearchAndDevelopmentExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ResearchAndDevelopmentExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ResearchAndDevelopmentExpense" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherOperatingIncomeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherOperatingIncomeExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_OtherOperatingIncomeExpense" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherGainsLosses" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherGainsLosses"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_OtherGainsLosses" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLossFromOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ProfitLossFromOperatingActivities" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinanceIncomeCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceIncomeCost"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_FinanceIncomeCost" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLossBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossBeforeTax"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ProfitLossBeforeTax" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_IncomeTaxExpenseContinuingOperations" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ProfitLoss" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_OtherComprehensiveIncome" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ComprehensiveIncome" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BasicEarningsLossPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BasicEarningsLossPerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_BasicEarningsLossPerShare" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DilutedEarningsLossPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DilutedEarningsLossPerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_DilutedEarningsLossPerShare" order="17" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_WeightedAverageShares" order="18" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustedWeightedAverageShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustedWeightedAverageShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_AdjustedWeightedAverageShares" order="19" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ShareholdersEquityType2or3" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_StatementOfChangesInEquityLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_StatementOfChangesInEquityTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_StatementOfChangesInEquityTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ComponentsOfEquityAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfEquityAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ifrs-full_StatementOfChangesInEquityTable" xlink:to="ifrs-full_ComponentsOfEquityAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ComponentsOfEquityDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfEquityDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ComponentsOfEquityAxis" xlink:to="ifrs-full_ComponentsOfEquityDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ComponentsOfEquityDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfEquityDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ComponentsOfEquityAxis" xlink:to="ifrs-full_ComponentsOfEquityDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IssuedCapitalMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapitalMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ComponentsOfEquityDomain" xlink:to="ifrs-full_IssuedCapitalMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TreasurySharesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TreasurySharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ComponentsOfEquityDomain" xlink:to="ifrs-full_TreasurySharesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RetainedEarningsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetainedEarningsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ComponentsOfEquityDomain" xlink:to="ifrs-full_RetainedEarningsMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ExchangeReservesMember" xlink:href="btdr-20250630.xsd#btdr_ExchangeReservesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ComponentsOfEquityDomain" xlink:to="btdr_ExchangeReservesMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherReservesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherReservesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ComponentsOfEquityDomain" xlink:to="ifrs-full_OtherReservesMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_EquityAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_EquityAttributableToOwnersOfParent" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_ProfitLoss" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IssuanceOfSharesForExerciseOfShareAwards" xlink:href="btdr-20250630.xsd#btdr_IssuanceOfSharesForExerciseOfShareAwards"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="btdr_IssuanceOfSharesForExerciseOfShareAwards" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CancellationOfTreasuryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CancellationOfTreasuryShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_CancellationOfTreasuryShares" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AcquisitionOfTreasuryShares" xlink:href="btdr-20250630.xsd#btdr_AcquisitionOfTreasuryShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="btdr_AcquisitionOfTreasuryShares" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IssueOfEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssueOfEquity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_IssueOfEquity" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughExerciseOfWarrantsEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughExerciseOfWarrantsEquity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughExerciseOfWarrantsEquity" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PurchaseOfZeroStrikeCallOptionInConnectionWithIssuanceOfConvertibleSeniorNotes" xlink:href="btdr-20250630.xsd#btdr_PurchaseOfZeroStrikeCallOptionInConnectionWithIssuanceOfConvertibleSeniorNotes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="btdr_PurchaseOfZeroStrikeCallOptionInConnectionWithIssuanceOfConvertibleSeniorNotes" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Equity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_Equity" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ShareIssueRelatedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareIssueRelatedCost"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_ShareIssueRelatedCost" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughExerciseOfOptions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" order="13" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ConsolidatedCashFlow" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_StatementOfCashFlowsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfCashFlowsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperations"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInOperations" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_InterestPaidOnLeaseLiabilities" xlink:href="btdr-20250630.xsd#btdr_InterestPaidOnLeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="btdr_InterestPaidOnLeaseLiabilities" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestPaidClassifiedAsOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestPaidClassifiedAsOperatingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_InterestPaidClassifiedAsOperatingActivities" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestReceivedClassifiedAsOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestReceivedClassifiedAsOperatingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_InterestReceivedClassifiedAsOperatingActivities" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivities" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PurchaseOfMiningAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfMiningAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_PurchaseOfMiningAssets" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ProceedsFromDisposalOfOtherFinancialAssetsClassifiedAsInvestingActivities" xlink:href="btdr-20250630.xsd#btdr_ProceedsFromDisposalOfOtherFinancialAssetsClassifiedAsInvestingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="btdr_ProceedsFromDisposalOfOtherFinancialAssetsClassifiedAsInvestingActivities" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PurchaseOfCryptocurrenciesClassifiedAsInvestingActivities" xlink:href="btdr-20250630.xsd#btdr_PurchaseOfCryptocurrenciesClassifiedAsInvestingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="btdr_PurchaseOfCryptocurrenciesClassifiedAsInvestingActivities" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ProceedsFromDisposalOfComputerEquipment" xlink:href="btdr-20250630.xsd#btdr_ProceedsFromDisposalOfComputerEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="btdr_ProceedsFromDisposalOfComputerEquipment" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ProceedsFromDisposalOfCryptocurrencies" xlink:href="btdr-20250630.xsd#btdr_ProceedsFromDisposalOfCryptocurrencies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="btdr_ProceedsFromDisposalOfCryptocurrencies" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_CashPaidForTheSiteAndGasfiredPowerProjectInAlbertaCanada" xlink:href="btdr-20250630.xsd#btdr_CashPaidForTheSiteAndGasfiredPowerProjectInAlbertaCanada"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="btdr_CashPaidForTheSiteAndGasfiredPowerProjectInAlbertaCanada" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PaymentToAcquireProductiveBusiness" xlink:href="btdr-20250630.xsd#btdr_PaymentToAcquireProductiveBusiness"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="btdr_PaymentToAcquireProductiveBusiness" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromCurrentBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromCurrentBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_ProceedsFromCurrentBorrowings" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RepaymentsOfCurrentBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfCurrentBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_RepaymentsOfCurrentBorrowings" order="17" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ProceedsFromCurrentBorrowingsFromARelatedParty" xlink:href="btdr-20250630.xsd#btdr_ProceedsFromCurrentBorrowingsFromARelatedParty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="btdr_ProceedsFromCurrentBorrowingsFromARelatedParty" order="18" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_RepaymentsOfCurrentBorrowingsFromARelatedParty" xlink:href="btdr-20250630.xsd#btdr_RepaymentsOfCurrentBorrowingsFromARelatedParty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="btdr_RepaymentsOfCurrentBorrowingsFromARelatedParty" order="19" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromExerciseOfOptions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromExerciseOfOptions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_ProceedsFromExerciseOfOptions" order="20" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromIssueOfOrdinaryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssueOfOrdinaryShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_ProceedsFromIssueOfOrdinaryShares" order="21" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromExerciseOfWarrants" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromExerciseOfWarrants"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_ProceedsFromExerciseOfWarrants" order="22" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PaymentsForShareIssueCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsForShareIssueCosts"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_PaymentsForShareIssueCosts" order="23" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PaymentForAcquisitionofTreasuryShares" xlink:href="btdr-20250630.xsd#btdr_PaymentForAcquisitionofTreasuryShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="btdr_PaymentForAcquisitionofTreasuryShares" order="24" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures" order="25" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" order="26" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PurchaseOfZeroStrikeCallOption" xlink:href="btdr-20250630.xsd#btdr_PurchaseOfZeroStrikeCallOption"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="btdr_PurchaseOfZeroStrikeCallOption" order="27" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivities" order="28" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" order="29" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_CashAndCashEquivalents" order="30" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" order="31" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/Organization" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract" xlink:to="ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/BasisofPreparation" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_BasisOfPreparationAbstract" xlink:href="btdr-20250630.xsd#btdr_BasisOfPreparationAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BasisOfPreparationAbstract" xlink:to="ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/SignificantAccountingPolicies" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfChangesInAccountingEstimatesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfChangesInAccountingEstimatesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfChangesInAccountingPoliciesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfChangesInAccountingPoliciesExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfChangesInAccountingEstimatesAbstract" xlink:to="ifrs-full_DisclosureOfChangesInAccountingPoliciesExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/UseofJudgmentsandEstimates" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_UseOfJudgmentsAndEstimatesAbstract" xlink:href="btdr-20250630.xsd#btdr_UseOfJudgmentsAndEstimatesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_UseOfJudgmentsAndEstimatesAbstract" xlink:to="ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/FinancialRiskManagementandFairValuesofFinancialInstruments" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_FinancialRiskManagementAndFairValuesOfFinancialInstrumentsAbstract" xlink:href="btdr-20250630.xsd#btdr_FinancialRiskManagementAndFairValuesOfFinancialInstrumentsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_FinancialRiskManagementAndFairValuesOfFinancialInstrumentsAbstract" xlink:to="ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/BusinessCombination" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:to="ifrs-full_DisclosureOfBusinessCombinationsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/RevenueandContractBalances" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_RevenueAndContractBalancesAbstract" xlink:href="btdr-20250630.xsd#btdr_RevenueAndContractBalancesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InformationAboutRelationshipBetweenDisclosureOfDisaggregatedRevenueFromContractsWithCustomersAndRevenueInformationForReportableSegmentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InformationAboutRelationshipBetweenDisclosureOfDisaggregatedRevenueFromContractsWithCustomersAndRevenueInformationForReportableSegmentsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_RevenueAndContractBalancesAbstract" xlink:to="ifrs-full_InformationAboutRelationshipBetweenDisclosureOfDisaggregatedRevenueFromContractsWithCustomersAndRevenueInformationForReportableSegmentsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/SegmentInformation" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:to="ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/CashCashEquivalentsandRestrictedCash" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_CashAndCashEquivalentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalentsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CashAndCashEquivalentsAbstract" xlink:to="ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/Cryptocurrencies" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_CRYPTOCURRENCIESAbstract" xlink:href="btdr-20250630.xsd#btdr_CRYPTOCURRENCIESAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfCryptocurrenciesTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfCryptocurrenciesTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_CRYPTOCURRENCIESAbstract" xlink:to="btdr_DisclosureOfCryptocurrenciesTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/PrepaymentsandOtherAssets" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentPrepaymentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentPrepaymentsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CurrentPrepaymentsAbstract" xlink:to="ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/Inventories" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfInventoriesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfInventoriesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInventoriesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInventoriesExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfInventoriesAbstract" xlink:to="ifrs-full_DisclosureOfInventoriesExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/FinancialAssetsatFairValuethroughProfitorLoss" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialAssetsAbstract" xlink:to="ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/MiningRigs" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_MiningRigsAbstract" xlink:href="btdr-20250630.xsd#btdr_MiningRigsAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_MiningRigsTextBlock" xlink:href="btdr-20250630.xsd#btdr_MiningRigsTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_MiningRigsAbstract" xlink:to="btdr_MiningRigsTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/PropertyPlantandEquipment" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:to="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/InvestmentProperties" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInvestmentPropertyAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInvestmentPropertyAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInvestmentPropertyExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInvestmentPropertyExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyAbstract" xlink:to="ifrs-full_DisclosureOfInvestmentPropertyExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/IntangibleAssetsandGoodwill" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_IntangibleAssetsAndGoodwillAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsAndGoodwillAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IntangibleAssetsAndGoodwillAbstract" xlink:to="ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/Leases" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PresentationOfLeasesForLesseeAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfLeasesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfLeasesExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="ifrs-full_DisclosureOfLeasesExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/Borrowings" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBorrowingsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xlink:to="ifrs-full_DisclosureOfBorrowingsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/DerivativeLiabilities" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsAbstract" xlink:to="ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/OtherPayablesandAccruals" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherPayablesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherPayablesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherPayablesAbstract" xlink:to="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ExpensesbyNatureandOtherIncomeandExpensesItems" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AnalysisOfIncomeAndExpenseAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfExpensesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfExpensesExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:to="ifrs-full_DisclosureOfExpensesExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ShareBasedPayments" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/Equity" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_EquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EquityAbstract" xlink:to="ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/Taxation" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIncomeTaxExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:to="ifrs-full_DisclosureOfIncomeTaxExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/RelatedPartyTransactions" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRelatedPartyExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:to="ifrs-full_DisclosureOfRelatedPartyExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/EarningsLossPerShare" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_EarningsPerShareAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfEarningsPerShareExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEarningsPerShareExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="ifrs-full_DisclosureOfEarningsPerShareExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/SupplementalCashFlowInformation" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_SupplementalCashFlowInformationsAbstract" xlink:href="btdr-20250630.xsd#btdr_SupplementalCashFlowInformationsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfCashFlowStatementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCashFlowStatementExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_SupplementalCashFlowInformationsAbstract" xlink:to="ifrs-full_DisclosureOfCashFlowStatementExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/SubsequentEvents" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xlink:to="ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/AccountingPoliciesByPolicy" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfChangesInAccountingPoliciesAndNewlyAdoptedAccountingPoliciesPolicyTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfChangesInAccountingPoliciesAndNewlyAdoptedAccountingPoliciesPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="btdr_DisclosureOfChangesInAccountingPoliciesAndNewlyAdoptedAccountingPoliciesPolicyTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/FinancialRiskManagementandFairValuesofFinancialInstrumentsTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_FinancialRiskManagementAndFairValuesOfFinancialInstrumentsAbstract" xlink:href="btdr-20250630.xsd#btdr_FinancialRiskManagementAndFairValuesOfFinancialInstrumentsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_FinancialRiskManagementAndFairValuesOfFinancialInstrumentsAbstract" xlink:to="ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_FinancialRiskManagementAndFairValuesOfFinancialInstrumentsAbstract" xlink:to="ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_FinancialRiskManagementAndFairValuesOfFinancialInstrumentsAbstract" xlink:to="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/BusinessCombinationTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_DetailedInformationAboutBusinessCombinationsExplanatory" xlink:href="btdr-20250630.xsd#btdr_DetailedInformationAboutBusinessCombinationsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:to="btdr_DetailedInformationAboutBusinessCombinationsExplanatory" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfDetailedInformationAboutKeyInputsUsedInTheModelForDeterminingTheValueOfTheOptionTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfDetailedInformationAboutKeyInputsUsedInTheModelForDeterminingTheValueOfTheOptionTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:to="btdr_DisclosureOfDetailedInformationAboutKeyInputsUsedInTheModelForDeterminingTheValueOfTheOptionTableTextBlock" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:to="ifrs-full_DisclosureOfTransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationExplanatory" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/RevenueandContractBalancesTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_RevenueAndContractBalancesAbstract" xlink:href="btdr-20250630.xsd#btdr_RevenueAndContractBalancesAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_ScheduleOfDerivesRevenuesTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_ScheduleOfDerivesRevenuesTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_RevenueAndContractBalancesAbstract" xlink:to="btdr_ScheduleOfDerivesRevenuesTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfRevenueConcentrationTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfRevenueConcentrationTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_RevenueAndContractBalancesAbstract" xlink:to="btdr_DisclosureOfRevenueConcentrationTableTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/SegmentInformationTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGeographicalAreasExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:to="ifrs-full_DisclosureOfGeographicalAreasExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/CashCashEquivalentsandRestrictedCashTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_CashAndCashEquivalentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalentsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CashAndCashEquivalentsAbstract" xlink:to="ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfMaximumAggregateDrawAmountFromStandbyLettersOfCreditTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfMaximumAggregateDrawAmountFromStandbyLettersOfCreditTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CashAndCashEquivalentsAbstract" xlink:to="btdr_DisclosureOfMaximumAggregateDrawAmountFromStandbyLettersOfCreditTableTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/CryptocurrenciesTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_CRYPTOCURRENCIESAbstract" xlink:href="btdr-20250630.xsd#btdr_CRYPTOCURRENCIESAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfGroupsCryptocurrenciesTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfGroupsCryptocurrenciesTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_CRYPTOCURRENCIESAbstract" xlink:to="btdr_DisclosureOfGroupsCryptocurrenciesTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfDetailedInformationOfCryptocurrenciesTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfDetailedInformationOfCryptocurrenciesTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_CRYPTOCURRENCIESAbstract" xlink:to="btdr_DisclosureOfDetailedInformationOfCryptocurrenciesTableTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/PrepaymentsandOtherAssetsTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentPrepaymentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentPrepaymentsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfOtherAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherAssetsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CurrentPrepaymentsAbstract" xlink:to="ifrs-full_DisclosureOfOtherAssetsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/InventoriesTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfInventoriesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfInventoriesAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfDetailedInformationOfInventoriesTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfDetailedInformationOfInventoriesTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfInventoriesAbstract" xlink:to="btdr_DisclosureOfDetailedInformationOfInventoriesTableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/FinancialAssetsatFairValuethroughProfitorLossTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialAssetsAbstract" xlink:to="ifrs-full_DisclosureOfFinancialAssetsExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/MiningRigsTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_MiningRigsAbstract" xlink:href="btdr-20250630.xsd#btdr_MiningRigsAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfMiningRigsTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfMiningRigsTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_MiningRigsAbstract" xlink:to="btdr_DisclosureOfMiningRigsTableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/PropertyPlantandEquipmentTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/InvestmentPropertiesTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInvestmentPropertyAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInvestmentPropertyAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutInvestmentPropertyExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutInvestmentPropertyExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyAbstract" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutInvestmentPropertyExplanatory" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyAbstract" xlink:to="ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/IntangibleAssetsandGoodwillTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_IntangibleAssetsAndGoodwillAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsAndGoodwillAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_IntangibleAssetsAndGoodwillAbstract" xlink:to="ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/LeasesTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PresentationOfLeasesForLesseeAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ScheduleOfProvisionForRestorationTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_ScheduleOfProvisionForRestorationTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="btdr_ScheduleOfProvisionForRestorationTableTextBlock" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ScheduleOfLeaseLiabilitiesTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_ScheduleOfLeaseLiabilitiesTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="btdr_ScheduleOfLeaseLiabilitiesTableTextBlock" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfRightOfUseAssetsImpactOnProfitOrLossTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfRightOfUseAssetsImpactOnProfitOrLossTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="btdr_DisclosureOfRightOfUseAssetsImpactOnProfitOrLossTableTextBlock" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/BorrowingsTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xlink:to="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/DerivativeLiabilitiesTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsAbstract" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ScheduleOfDerivativeLiabilitiesTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_ScheduleOfDerivativeLiabilitiesTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsAbstract" xlink:to="btdr_ScheduleOfDerivativeLiabilitiesTableTextBlock" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DetailedInformationAboutValueOfWarrantDerivativeTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DetailedInformationAboutValueOfWarrantDerivativeTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsAbstract" xlink:to="btdr_DetailedInformationAboutValueOfWarrantDerivativeTableTextBlock" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsLiabilitiesExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsAbstract" xlink:to="ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsLiabilitiesExplanatory" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/OtherPayablesandAccrualsTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherPayablesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherPayablesAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfOtherPayablesAndAccrualsTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfOtherPayablesAndAccrualsTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherPayablesAbstract" xlink:to="btdr_DisclosureOfOtherPayablesAndAccrualsTableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ExpensesbyNatureandOtherIncomeandExpensesItemsTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AnalysisOfIncomeAndExpenseAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfExpensesByNatureExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfExpensesByNatureExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:to="ifrs-full_DisclosureOfExpensesByNatureExplanatory" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:to="ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfOtherNetGainLossTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfOtherNetGainLossTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:to="btdr_DisclosureOfOtherNetGainLossTableTextBlock" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:to="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ShareBasedPaymentsTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/EquityTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_EquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EquityAbstract" xlink:to="ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/TaxationTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfIncomeTaxProvisionExplanatoryTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfIncomeTaxProvisionExplanatoryTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:to="btdr_DisclosureOfIncomeTaxProvisionExplanatoryTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDeferredTaxesExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:to="ifrs-full_DisclosureOfDeferredTaxesExplanatory" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfDetailedInformationAboutMovementsInNetDeferredTaxAssetsLiabilitiesTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfDetailedInformationAboutMovementsInNetDeferredTaxAssetsLiabilitiesTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:to="btdr_DisclosureOfDetailedInformationAboutMovementsInNetDeferredTaxAssetsLiabilitiesTableTextBlock" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:to="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/RelatedPartyTransactionsTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:to="ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:to="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/EarningsLossPerShareTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_EarningsPerShareAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_EarningsPerShareExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareExplanatory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="ifrs-full_EarningsPerShareExplanatory" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/SupplementalCashFlowInformationTables" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_SupplementalCashFlowInformationsAbstract" xlink:href="btdr-20250630.xsd#btdr_SupplementalCashFlowInformationsAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_NonCashInvestingAndFinancingActivitiesTableTextBlock" xlink:href="btdr-20250630.xsd#btdr_NonCashInvestingAndFinancingActivitiesTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_SupplementalCashFlowInformationsAbstract" xlink:to="btdr_NonCashInvestingAndFinancingActivitiesTableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofMaturityProfileoftheGroupsFinancialLiabilitiesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofMaturityProfileoftheGroupsFinancialLiabilitiesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofMaturityProfileoftheGroupsFinancialLiabilitiesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofMaturityProfileoftheGroupsFinancialLiabilitiesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MaturityAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofMaturityProfileoftheGroupsFinancialLiabilitiesDetailsTable" xlink:to="ifrs-full_MaturityAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MaturityDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_MaturityAxis" xlink:to="ifrs-full_MaturityDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MaturityDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_MaturityAxis" xlink:to="ifrs-full_MaturityDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NotLaterThanOneYearMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NotLaterThanOneYearMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_NotLaterThanOneYearMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanFiveYearsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_LaterThanFiveYearsMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherPayablesToTradeSuppliers" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherPayablesToTradeSuppliers"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_TradeAndOtherPayablesToTradeSuppliers" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_OtherPayablesAndAccrualsUndiscountedCashFlows" xlink:href="btdr-20250630.xsd#btdr_OtherPayablesAndAccrualsUndiscountedCashFlows"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_OtherPayablesAndAccrualsUndiscountedCashFlows" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherPayables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_OtherPayables" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AmountDueToRelatedPartyUndiscountedCashFlows" xlink:href="btdr-20250630.xsd#btdr_AmountDueToRelatedPartyUndiscountedCashFlows"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_AmountDueToRelatedPartyUndiscountedCashFlows" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_BorrowingsAndDerivativeLiabilitiesUndiscountedCashFlows" xlink:href="btdr-20250630.xsd#btdr_BorrowingsAndDerivativeLiabilitiesUndiscountedCashFlows"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_BorrowingsAndDerivativeLiabilitiesUndiscountedCashFlows" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_BorrowingsAndDerivativeLiabilities" xlink:href="btdr-20250630.xsd#btdr_BorrowingsAndDerivativeLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_BorrowingsAndDerivativeLiabilities" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_BorrowingsfromaRelatedParty" xlink:href="btdr-20250630.xsd#btdr_BorrowingsfromaRelatedParty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_BorrowingsfromaRelatedParty" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_BorrowingsfromaRelatedPartyCarryingAmount" xlink:href="btdr-20250630.xsd#btdr_BorrowingsfromaRelatedPartyCarryingAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_BorrowingsfromaRelatedPartyCarryingAmount" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GrossLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossLeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_GrossLeaseLiabilities" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LeaseLiabilitiesCarryingAmount" xlink:href="btdr-20250630.xsd#btdr_LeaseLiabilitiesCarryingAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_LeaseLiabilitiesCarryingAmount" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_FinancialLiabilities" order="13" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofFinancialInstrumentsMeasuredatFairValueTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofFinancialInstrumentsMeasuredatFairValueDetailsTable" xlink:href="btdr-20250630.xsd#btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofFinancialInstrumentsMeasuredatFairValueDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofFinancialInstrumentsMeasuredatFairValueDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofFinancialInstrumentsMeasuredatFairValueDetailsTable" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofFinancialInstrumentsMeasuredatFairValueDetailsTable" xlink:to="ifrs-full_LevelsOfFairValueHierarchyAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:to="ifrs-full_LevelsOfFairValueHierarchyDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LevelsOfFairValueHierarchyDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:to="ifrs-full_LevelsOfFairValueHierarchyDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofFinancialInstrumentsMeasuredatFairValueDetailsTable" xlink:to="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:to="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:to="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_UnitedStatesDollarCoinMember" xlink:href="btdr-20250630.xsd#btdr_UnitedStatesDollarCoinMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_UnitedStatesDollarCoinMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_CryptocurrencySettledReceivablesMember" xlink:href="btdr-20250630.xsd#btdr_CryptocurrencySettledReceivablesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_CryptocurrencySettledReceivablesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_InvestmentsABDAndEInUnlistedEquityInstrumentsMember" xlink:href="btdr-20250630.xsd#btdr_InvestmentsABDAndEInUnlistedEquityInstrumentsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_InvestmentsABDAndEInUnlistedEquityInstrumentsMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_InvestmentsFIAndJInUnlistedEquityInstrumentsMember" xlink:href="btdr-20250630.xsd#btdr_InvestmentsFIAndJInUnlistedEquityInstrumentsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_InvestmentsFIAndJInUnlistedEquityInstrumentsMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_InvestmentsCInUnlistedEquityInstrumentsMember" xlink:href="btdr-20250630.xsd#btdr_InvestmentsCInUnlistedEquityInstrumentsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_InvestmentsCInUnlistedEquityInstrumentsMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_InvestmentGInUnlistedDebtInstrumentsMember" xlink:href="btdr-20250630.xsd#btdr_InvestmentGInUnlistedDebtInstrumentsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_InvestmentGInUnlistedDebtInstrumentsMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_InvestmentHInUnlistedDebtInstrumentsMember" xlink:href="btdr-20250630.xsd#btdr_InvestmentHInUnlistedDebtInstrumentsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_InvestmentHInUnlistedDebtInstrumentsMember" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_CryptocurrencySettledPayablesMember" xlink:href="btdr-20250630.xsd#btdr_CryptocurrencySettledPayablesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_CryptocurrencySettledPayablesMember" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialLiabilitiesAtFairValueMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="ifrs-full_FinancialLiabilitiesAtFairValueMember" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MarketComparablePricesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MarketComparablePricesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:to="ifrs-full_MarketComparablePricesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NetAssetValueMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NetAssetValueMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:to="ifrs-full_NetAssetValueMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_RecentTransactionPriceMember" xlink:href="btdr-20250630.xsd#btdr_RecentTransactionPriceMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:to="btdr_RecentTransactionPriceMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_MarketCalibrationMethodMember" xlink:href="btdr-20250630.xsd#btdr_MarketCalibrationMethodMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:to="btdr_MarketCalibrationMethodMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_BinomialModelsMember" xlink:href="btdr-20250630.xsd#btdr_BinomialModelsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:to="btdr_BinomialModelsMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Level1OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Level1OfFairValueHierarchyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:to="ifrs-full_Level1OfFairValueHierarchyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Level2OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Level2OfFairValueHierarchyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:to="ifrs-full_Level2OfFairValueHierarchyMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Level3OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:to="ifrs-full_Level3OfFairValueHierarchyMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialAssetsAtFairValue" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="ifrs-full_FinancialAssetsAtFairValue" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofFinancialInstrumentsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofFinancialInstrumentsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofFinancialInstrumentsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:to="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofFinancialInstrumentsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofFinancialInstrumentsDetailsTable" xlink:to="ifrs-full_LevelsOfFairValueHierarchyAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:to="ifrs-full_LevelsOfFairValueHierarchyDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LevelsOfFairValueHierarchyDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:to="ifrs-full_LevelsOfFairValueHierarchyDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_FinancialRiskManagementandFairValuesofFinancialInstrumentsScheduleofFinancialInstrumentsDetailsTable" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_InvestmentsInUnlistedEquityAndDebtInstrumentsMember" xlink:href="btdr-20250630.xsd#btdr_InvestmentsInUnlistedEquityAndDebtInstrumentsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_InvestmentsInUnlistedEquityAndDebtInstrumentsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialLiabilitiesAtFairValueMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="ifrs-full_FinancialLiabilitiesAtFairValueMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Level3OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:to="ifrs-full_Level3OfFairValueHierarchyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:to="ifrs-full_FinancialAssets" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PurchasesFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchasesFairValueMeasurementAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:to="ifrs-full_PurchasesFairValueMeasurementAssets" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DerecognitionOfDerivativeLiabilitiesOnConversion" xlink:href="btdr-20250630.xsd#btdr_DerecognitionOfDerivativeLiabilitiesOnConversion"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:to="btdr_DerecognitionOfDerivativeLiabilitiesOnConversion" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:to="ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_BusinessCombinationScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillDetailsTable" xlink:href="btdr-20250630.xsd#btdr_BusinessCombinationScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="btdr_BusinessCombinationScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_BusinessCombinationScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillDetailsTable" xlink:to="ifrs-full_BusinessCombinationsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TrollHousingASAndTydalDataCenterMember" xlink:href="btdr-20250630.xsd#btdr_TrollHousingASAndTydalDataCenterMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BusinessCombinationsDomain" xlink:to="btdr_TrollHousingASAndTydalDataCenterMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashTransferred" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashTransferred"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="ifrs-full_CashTransferred" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LiabilitiesIncurred" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesIncurred"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="ifrs-full_LiabilitiesIncurred" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_EquityInterestsOfAcquirer" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityInterestsOfAcquirer"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="ifrs-full_EquityInterestsOfAcquirer" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IssuedCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapital"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="ifrs-full_IssuedCapital" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_BusinessCombinationPurchaseConsiderationBeforePreExistingAdjustments" xlink:href="btdr-20250630.xsd#btdr_BusinessCombinationPurchaseConsiderationBeforePreExistingAdjustments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="btdr_BusinessCombinationPurchaseConsiderationBeforePreExistingAdjustments" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_NetAssetsOrLiabilitiesTransferredForPreExistingDebtorRelationship" xlink:href="btdr-20250630.xsd#btdr_NetAssetsOrLiabilitiesTransferredForPreExistingDebtorRelationship"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="btdr_NetAssetsOrLiabilitiesTransferredForPreExistingDebtorRelationship" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillTable_Parentheticals" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_BusinessCombinationScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillParentheticalsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_BusinessCombinationScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillParentheticalsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="btdr_BusinessCombinationScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillParentheticalsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_BusinessCombinationScheduleofPurchaseConsiderationtheNetAssetsAcquiredandGoodwillParentheticalsDetailsTable" xlink:to="ifrs-full_BusinessCombinationsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TrollHousingASAndTydalDataCenterMember" xlink:href="btdr-20250630.xsd#btdr_TrollHousingASAndTydalDataCenterMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BusinessCombinationsDomain" xlink:to="btdr_TrollHousingASAndTydalDataCenterMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfSharesOutstanding" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesOutstanding"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="ifrs-full_NumberOfSharesOutstanding" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofKeyInputsUsedintheModelforDeterminingtheValueoftheOptionTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:to="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:to="ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:to="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:to="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofAssetsandLiabilitiesRecognisedTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:href="btdr-20250630.xsd#btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsTable" xlink:href="btdr-20250630.xsd#btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsTable" xlink:to="ifrs-full_BusinessCombinationsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TrollHousingASAndTydalDataCenterMember" xlink:href="btdr-20250630.xsd#btdr_TrollHousingASAndTydalDataCenterMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BusinessCombinationsDomain" xlink:to="btdr_TrollHousingASAndTydalDataCenterMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TradeReceivablesRecognisedAsOfAcquisitionDate" xlink:href="btdr-20250630.xsd#btdr_TradeReceivablesRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="btdr_TradeReceivablesRecognisedAsOfAcquisitionDate" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PrepaymentsAndOtherAssetsRecognisedAsOfAcquisitionDate" xlink:href="btdr-20250630.xsd#btdr_PrepaymentsAndOtherAssetsRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="btdr_PrepaymentsAndOtherAssetsRecognisedAsOfAcquisitionDate" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_RightOfUseAssetsRecognisedAsOfAcquisitionDate" xlink:href="btdr-20250630.xsd#btdr_RightOfUseAssetsRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="btdr_RightOfUseAssetsRecognisedAsOfAcquisitionDate" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxAssetsRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssetsRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="ifrs-full_DeferredTaxAssetsRecognisedAsOfAcquisitionDate" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherPayables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="ifrs-full_OtherPayables" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IncomeTaxPayablesRecognisedAsOfAcquisitionDate" xlink:href="btdr-20250630.xsd#btdr_IncomeTaxPayablesRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="btdr_IncomeTaxPayablesRecognisedAsOfAcquisitionDate" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LeaseLiabilitiesRecognisedAsOfAcquisitionDate" xlink:href="btdr-20250630.xsd#btdr_LeaseLiabilitiesRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="btdr_LeaseLiabilitiesRecognisedAsOfAcquisitionDate" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GoodwillRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GoodwillRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="ifrs-full_GoodwillRecognisedAsOfAcquisitionDate" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_BusinessCombinationScheduleofAssetsandLiabilitiesRecognisedDetailsLineItems" xlink:to="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" order="14" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofDerivesRevenuesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_RevenueandContractBalancesScheduleofDerivesRevenuesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_RevenueandContractBalancesScheduleofDerivesRevenuesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:to="btdr_RevenueandContractBalancesScheduleofDerivesRevenuesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProductsAndServicesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProductsAndServicesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_RevenueandContractBalancesScheduleofDerivesRevenuesDetailsTable" xlink:to="ifrs-full_ProductsAndServicesAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProductsAndServicesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProductsAndServicesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ProductsAndServicesAxis" xlink:to="ifrs-full_ProductsAndServicesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProductsAndServicesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProductsAndServicesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ProductsAndServicesAxis" xlink:to="ifrs-full_ProductsAndServicesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MiningPropertyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MiningPropertyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="ifrs-full_MiningPropertyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_HashRateSubscriptionMember" xlink:href="btdr-20250630.xsd#btdr_HashRateSubscriptionMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="btdr_HashRateSubscriptionMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ElectricitySubscriptionMember" xlink:href="btdr-20250630.xsd#btdr_ElectricitySubscriptionMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="btdr_ElectricitySubscriptionMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AccelerationPlantArrangementsMember" xlink:href="btdr-20250630.xsd#btdr_AccelerationPlantArrangementsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="btdr_AccelerationPlantArrangementsMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_SalesOfMiningRigsMember" xlink:href="btdr-20250630.xsd#btdr_SalesOfMiningRigsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="btdr_SalesOfMiningRigsMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_CloudHostingArrangementsMember" xlink:href="btdr-20250630.xsd#btdr_CloudHostingArrangementsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="btdr_CloudHostingArrangementsMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_GeneralHostingMember" xlink:href="btdr-20250630.xsd#btdr_GeneralHostingMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="btdr_GeneralHostingMember" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_MembershipHostingMember" xlink:href="btdr-20250630.xsd#btdr_MembershipHostingMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="btdr_MembershipHostingMember" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_OtherRevenuesMember" xlink:href="btdr-20250630.xsd#btdr_OtherRevenuesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="btdr_OtherRevenuesMember" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Revenue" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Revenue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:to="ifrs-full_Revenue" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofRevenueConcentrationTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutConcentrationsOfRiskThatArisesFromContractsWithinScopeOfIFRS17LineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutConcentrationsOfRiskThatArisesFromContractsWithinScopeOfIFRS17LineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_RevenueandContractBalancesScheduleofRevenueConcentrationDetailsTable" xlink:href="btdr-20250630.xsd#btdr_RevenueandContractBalancesScheduleofRevenueConcentrationDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutConcentrationsOfRiskThatArisesFromContractsWithinScopeOfIFRS17LineItems" xlink:to="btdr_RevenueandContractBalancesScheduleofRevenueConcentrationDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProductsAndServicesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProductsAndServicesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_RevenueandContractBalancesScheduleofRevenueConcentrationDetailsTable" xlink:to="ifrs-full_ProductsAndServicesAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProductsAndServicesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProductsAndServicesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ProductsAndServicesAxis" xlink:to="ifrs-full_ProductsAndServicesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProductsAndServicesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProductsAndServicesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ProductsAndServicesAxis" xlink:to="ifrs-full_ProductsAndServicesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_CustomerAMember" xlink:href="btdr-20250630.xsd#btdr_CustomerAMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="btdr_CustomerAMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_CustomerBMember" xlink:href="btdr-20250630.xsd#btdr_CustomerBMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="btdr_CustomerBMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_CustomerCMember" xlink:href="btdr-20250630.xsd#btdr_CustomerCMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="btdr_CustomerCMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PercentageOfEntitysRevenue" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PercentageOfEntitysRevenue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutConcentrationsOfRiskThatArisesFromContractsWithinScopeOfIFRS17LineItems" xlink:to="ifrs-full_PercentageOfEntitysRevenue" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofDisaggregatedRevenueTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_SegmentInformationScheduleofDisaggregatedRevenueDetailsTable" xlink:href="btdr-20250630.xsd#btdr_SegmentInformationScheduleofDisaggregatedRevenueDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:to="btdr_SegmentInformationScheduleofDisaggregatedRevenueDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GeographicalAreasAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_SegmentInformationScheduleofDisaggregatedRevenueDetailsTable" xlink:to="ifrs-full_GeographicalAreasAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GeographicalAreasDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_GeographicalAreasAxis" xlink:to="ifrs-full_GeographicalAreasDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GeographicalAreasDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_GeographicalAreasAxis" xlink:to="ifrs-full_GeographicalAreasDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_SG" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_SG"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="country_SG" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_US" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_US"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="country_US" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_BT" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_BT"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="country_BT" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_NO" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_NO"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="country_NO" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_FI" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_FI"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="country_FI" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_ET" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_ET"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="country_ET" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_OtherCountriesMember" xlink:href="btdr-20250630.xsd#btdr_OtherCountriesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="btdr_OtherCountriesMember" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Revenue" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Revenue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:to="ifrs-full_Revenue" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:to="ifrs-full_FinancialAssets" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofBreakdownofCashAndCashEquivalentsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_CashCashEquivalentsandRestrictedCashScheduleofBreakdownofCashAndCashEquivalentsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_CashCashEquivalentsandRestrictedCashScheduleofBreakdownofCashAndCashEquivalentsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="btdr_CashCashEquivalentsandRestrictedCashScheduleofBreakdownofCashAndCashEquivalentsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_CurrencyAxis" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CurrencyAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_CashCashEquivalentsandRestrictedCashScheduleofBreakdownofCashAndCashEquivalentsDetailsTable" xlink:to="srt_CurrencyAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="currency_AllCurrenciesDomain" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_AllCurrenciesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_CurrencyAxis" xlink:to="currency_AllCurrenciesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="currency_AllCurrenciesDomain_0" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_AllCurrenciesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_CurrencyAxis" xlink:to="currency_AllCurrenciesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="currency_USD" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_USD"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="currency_AllCurrenciesDomain" xlink:to="currency_USD" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="currency_SGD" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_SGD"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="currency_AllCurrenciesDomain" xlink:to="currency_SGD" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="currency_NOK" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_NOK"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="currency_AllCurrenciesDomain" xlink:to="currency_NOK" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="currency_EUR" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_EUR"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="currency_AllCurrenciesDomain" xlink:to="currency_EUR" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="currency_BTN" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_BTN"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="currency_AllCurrenciesDomain" xlink:to="currency_BTN" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="currency_CNY" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_CNY"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="currency_AllCurrenciesDomain" xlink:to="currency_CNY" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="currency_MYR" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_MYR"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="currency_AllCurrenciesDomain" xlink:to="currency_MYR" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="currency_CAD" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_CAD"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="currency_AllCurrenciesDomain" xlink:to="currency_CAD" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="currency_HKD" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_HKD"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="currency_AllCurrenciesDomain" xlink:to="currency_HKD" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="ifrs-full_CashAndCashEquivalents" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentRestrictedCashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="ifrs-full_CurrentRestrictedCashAndCashEquivalents" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentRestrictedCashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RestrictedCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RestrictedCashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="ifrs-full_RestrictedCashAndCashEquivalents" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofStandbyLettersofCreditsSLCsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_CashCashEquivalentsandRestrictedCashScheduleofStandbyLettersofCreditsSLCsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_CashCashEquivalentsandRestrictedCashScheduleofStandbyLettersofCreditsSLCsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="btdr_CashCashEquivalentsandRestrictedCashScheduleofStandbyLettersofCreditsSLCsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_CashCashEquivalentsandRestrictedCashScheduleofStandbyLettersofCreditsSLCsDetailsTable" xlink:to="ifrs-full_BorrowingsByNameAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LetterOfCreditsMember" xlink:href="btdr-20250630.xsd#btdr_LetterOfCreditsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_LetterOfCreditsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="ifrs-full_OtherBorrowings" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_RangeOfExpirationDates" xlink:href="btdr-20250630.xsd#btdr_RangeOfExpirationDates"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="btdr_RangeOfExpirationDates" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofGroupsCryptocurrenciesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_CRYPTOCURRENCIESAbstract" xlink:href="btdr-20250630.xsd#btdr_CRYPTOCURRENCIESAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IntangibleAssetsWithIndefiniteUsefulLife" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsWithIndefiniteUsefulLife"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_CRYPTOCURRENCIESAbstract" xlink:to="ifrs-full_IntangibleAssetsWithIndefiniteUsefulLife" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_UnitedStatesDollarCoinCryptocurrencies" xlink:href="btdr-20250630.xsd#btdr_UnitedStatesDollarCoinCryptocurrencies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_CRYPTOCURRENCIESAbstract" xlink:to="btdr_UnitedStatesDollarCoinCryptocurrencies" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_Cryptocurrencies" xlink:href="btdr-20250630.xsd#btdr_Cryptocurrencies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_CRYPTOCURRENCIESAbstract" xlink:to="btdr_Cryptocurrencies" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofDetailsofCryptocurrenciesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_CryptocurrenciesScheduleofDetailsofCryptocurrenciesDetailsLineItems" xlink:href="btdr-20250630.xsd#btdr_CryptocurrenciesScheduleofDetailsofCryptocurrenciesDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_CryptocurrenciesScheduleofDetailsofCryptocurrenciesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_CryptocurrenciesScheduleofDetailsofCryptocurrenciesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="btdr_CryptocurrenciesScheduleofDetailsofCryptocurrenciesDetailsLineItems" xlink:to="btdr_CryptocurrenciesScheduleofDetailsofCryptocurrenciesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_CryptocurrenciesScheduleofDetailsofCryptocurrenciesDetailsTable" xlink:to="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountMember_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountMember_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_CryptocurrenciesScheduleofDetailsofCryptocurrenciesDetailsTable" xlink:to="ifrs-full_ClassesOfAssetsAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GrossCarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossCarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_GrossCarryingAmountMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AccumulatedImpairmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedImpairmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_AccumulatedImpairmentMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_OtherThanUnitedStatesDollarCoinMember" xlink:href="btdr-20250630.xsd#btdr_OtherThanUnitedStatesDollarCoinMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfAssetsDomain" xlink:to="btdr_OtherThanUnitedStatesDollarCoinMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_Cryptocurrencies" xlink:href="btdr-20250630.xsd#btdr_Cryptocurrencies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_CryptocurrenciesScheduleofDetailsofCryptocurrenciesDetailsLineItems" xlink:to="btdr_Cryptocurrencies" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AdditionsCryptocurrencies" xlink:href="btdr-20250630.xsd#btdr_AdditionsCryptocurrencies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_CryptocurrenciesScheduleofDetailsofCryptocurrenciesDetailsLineItems" xlink:to="btdr_AdditionsCryptocurrencies" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DisposalAndPaymentsCryptocurrencies" xlink:href="btdr-20250630.xsd#btdr_DisposalAndPaymentsCryptocurrencies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_CryptocurrenciesScheduleofDetailsofCryptocurrenciesDetailsLineItems" xlink:to="btdr_DisposalAndPaymentsCryptocurrencies" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofPrepaymentsandOtherAssetsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssetsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Prepayments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Prepayments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssetsAbstract" xlink:to="ifrs-full_Prepayments" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LongtermDeposits" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LongtermDeposits"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssetsAbstract" xlink:to="ifrs-full_LongtermDeposits" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ValueAddedTaxReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ValueAddedTaxReceivables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssetsAbstract" xlink:to="ifrs-full_ValueAddedTaxReceivables" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PrepaymentsOfIncomeTax" xlink:href="btdr-20250630.xsd#btdr_PrepaymentsOfIncomeTax"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssetsAbstract" xlink:to="btdr_PrepaymentsOfIncomeTax" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AccruedIncomeOtherThanContractAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccruedIncomeOtherThanContractAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssetsAbstract" xlink:to="ifrs-full_AccruedIncomeOtherThanContractAssets" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssetsAbstract" xlink:to="ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssets" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncomeOtherThanCurrentContractAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncomeOtherThanCurrentContractAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssetsAbstract" xlink:to="ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncomeOtherThanCurrentContractAssets" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncomeIncludingNoncurrentContractAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncomeIncludingNoncurrentContractAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PrepaymentsAndAccruedIncomeOtherThanContractAssetsAbstract" xlink:to="ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncomeIncludingNoncurrentContractAssets" order="7" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofInventoriesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfInventoriesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfInventoriesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RawMaterials" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RawMaterials"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfInventoriesAbstract" xlink:to="ifrs-full_RawMaterials" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WorkInProgress" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WorkInProgress"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfInventoriesAbstract" xlink:to="ifrs-full_WorkInProgress" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinishedGoods" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinishedGoods"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfInventoriesAbstract" xlink:to="ifrs-full_FinishedGoods" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Inventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Inventories"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfInventoriesAbstract" xlink:to="ifrs-full_Inventories" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofFinancialAssetsatFairValuethroughProfitorLossTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_FinancialAssetsatFairValuethroughProfitorLossScheduleofFinancialAssetsatFairValuethroughProfitorLossDetailsTable" xlink:href="btdr-20250630.xsd#btdr_FinancialAssetsatFairValuethroughProfitorLossScheduleofFinancialAssetsatFairValuethroughProfitorLossDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="btdr_FinancialAssetsatFairValuethroughProfitorLossScheduleofFinancialAssetsatFairValuethroughProfitorLossDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_FinancialAssetsatFairValuethroughProfitorLossScheduleofFinancialAssetsatFairValuethroughProfitorLossDetailsTable" xlink:to="ifrs-full_ClassesOfFinancialAssetsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfFinancialAssetsAxis" xlink:to="ifrs-full_ClassesOfFinancialAssetsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialAssetsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfFinancialAssetsAxis" xlink:to="ifrs-full_ClassesOfFinancialAssetsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_FinancialAssetsatFairValuethroughProfitorLossScheduleofFinancialAssetsatFairValuethroughProfitorLossDetailsTable" xlink:to="ifrs-full_CategoriesOfFinancialAssetsAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:to="ifrs-full_CategoriesOfFinancialAssetsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfFinancialAssetsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:to="ifrs-full_CategoriesOfFinancialAssetsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:to="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_EquityInvestmentAMember" xlink:href="btdr-20250630.xsd#btdr_EquityInvestmentAMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="btdr_EquityInvestmentAMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_EquityInvestmentBMember" xlink:href="btdr-20250630.xsd#btdr_EquityInvestmentBMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="btdr_EquityInvestmentBMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_EquityInvestmentCMember" xlink:href="btdr-20250630.xsd#btdr_EquityInvestmentCMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="btdr_EquityInvestmentCMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_EquityInvestmentDMember" xlink:href="btdr-20250630.xsd#btdr_EquityInvestmentDMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="btdr_EquityInvestmentDMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_EquityInvestmentEMember" xlink:href="btdr-20250630.xsd#btdr_EquityInvestmentEMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="btdr_EquityInvestmentEMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_EquityInvestmentFMember" xlink:href="btdr-20250630.xsd#btdr_EquityInvestmentFMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="btdr_EquityInvestmentFMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_EquityInvestmentIMember" xlink:href="btdr-20250630.xsd#btdr_EquityInvestmentIMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="btdr_EquityInvestmentIMember" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_EquityInvestmentJMember" xlink:href="btdr-20250630.xsd#btdr_EquityInvestmentJMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="btdr_EquityInvestmentJMember" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DebtInvestmentGMember" xlink:href="btdr-20250630.xsd#btdr_DebtInvestmentGMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="btdr_DebtInvestmentGMember" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DebtInvestmentHMember" xlink:href="btdr-20250630.xsd#btdr_DebtInvestmentHMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="btdr_DebtInvestmentHMember" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofMiningRigsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_MiningRigsScheduleofMiningRigsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_MiningRigsScheduleofMiningRigsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:to="btdr_MiningRigsScheduleofMiningRigsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_MiningRigsScheduleofMiningRigsDetailsTable" xlink:to="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountMember_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountMember_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_MiningRigsScheduleofMiningRigsDetailsTable" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ComputerEquipmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComputerEquipmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="ifrs-full_ComputerEquipmentMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GrossCarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossCarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_GrossCarryingAmountMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedDepreciationAndAmortisationMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_AccumulatedDepreciationAndAmortisationMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AccumulatedImpairmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedImpairmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_AccumulatedImpairmentMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:to="ifrs-full_PropertyPlantAndEquipment" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:to="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:to="ifrs-full_DepreciationPropertyPlantAndEquipment" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofPropertyPlantandEquipmentTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsLineItems" xlink:href="btdr-20250630.xsd#btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsTable" xlink:href="btdr-20250630.xsd#btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsLineItems" xlink:to="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsTable" xlink:to="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountMember_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountMember_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsTable" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ConstructionInProgressMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ConstructionInProgressMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="ifrs-full_ConstructionInProgressMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BuildingsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BuildingsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="ifrs-full_BuildingsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LandMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LandMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="ifrs-full_LandMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MachineryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MachineryMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="ifrs-full_MachineryMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ElectronicEquipmentMember" xlink:href="btdr-20250630.xsd#btdr_ElectronicEquipmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="btdr_ElectronicEquipmentMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LeaseholdImprovementsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseholdImprovementsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="ifrs-full_LeaseholdImprovementsMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ContainerizedSolutionMember" xlink:href="btdr-20250630.xsd#btdr_ContainerizedSolutionMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="btdr_ContainerizedSolutionMember" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherPropertyPlantAndEquipmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherPropertyPlantAndEquipmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="ifrs-full_OtherPropertyPlantAndEquipmentMember" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GrossCarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossCarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_GrossCarryingAmountMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AccumulatedImpairmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedImpairmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_AccumulatedImpairmentMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsLineItems" xlink:to="ifrs-full_PropertyPlantAndEquipment" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsLineItems" xlink:to="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersFromConstructionInProgressPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersFromConstructionInProgressPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersFromConstructionInProgressPropertyPlantAndEquipment" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisposalsPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsLineItems" xlink:to="ifrs-full_DisposalsPropertyPlantAndEquipment" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsLineItems" xlink:to="ifrs-full_DepreciationPropertyPlantAndEquipment" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetailsLineItems" xlink:to="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofInvestmentPropertiesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInvestmentPropertyLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_InvestmentPropertiesScheduleofInvestmentPropertiesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_InvestmentPropertiesScheduleofInvestmentPropertiesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="btdr_InvestmentPropertiesScheduleofInvestmentPropertiesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_InvestmentPropertiesScheduleofInvestmentPropertiesDetailsTable" xlink:to="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountMember_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountMember_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_InvestmentPropertiesScheduleofInvestmentPropertiesDetailsTable" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LeaseholdLandMember" xlink:href="btdr-20250630.xsd#btdr_LeaseholdLandMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="btdr_LeaseholdLandMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BuildingsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BuildingsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="ifrs-full_BuildingsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherPropertyPlantAndEquipmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherPropertyPlantAndEquipmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="ifrs-full_OtherPropertyPlantAndEquipmentMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GrossCarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossCarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_GrossCarryingAmountMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentProperty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="ifrs-full_InvestmentProperty" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsInvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsInvestmentProperty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsInvestmentProperty" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DisposalsAndRetirementsPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisposalsAndRetirementsPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="ifrs-full_DisposalsAndRetirementsPropertyPlantAndEquipment" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesInvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesInvestmentProperty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesInvestmentProperty" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DepreciationInvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationInvestmentProperty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="ifrs-full_DepreciationInvestmentProperty" order="4" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofLeasePaymentsReceivableUnderOperatingLeasesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInvestmentPropertyLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_InvestmentPropertiesScheduleofLeasePaymentsReceivableUnderOperatingLeasesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_InvestmentPropertiesScheduleofLeasePaymentsReceivableUnderOperatingLeasesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="btdr_InvestmentPropertiesScheduleofLeasePaymentsReceivableUnderOperatingLeasesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MaturityAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_InvestmentPropertiesScheduleofLeasePaymentsReceivableUnderOperatingLeasesDetailsTable" xlink:to="ifrs-full_MaturityAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MaturityDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_MaturityAxis" xlink:to="ifrs-full_MaturityDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MaturityDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_MaturityAxis" xlink:to="ifrs-full_MaturityDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_InvestmentPropertiesScheduleofLeasePaymentsReceivableUnderOperatingLeasesDetailsTable" xlink:to="ifrs-full_ClassesOfAssetsAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NotLaterThanOneYearMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NotLaterThanOneYearMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_NotLaterThanOneYearMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanFiveYearsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_LaterThanFiveYearsMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InvestmentPropertyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentPropertyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfAssetsDomain" xlink:to="ifrs-full_InvestmentPropertyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofIntangibleAssetsandGoodwillTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_IntangibleAssetsandGoodwillScheduleofIntangibleAssetsandGoodwillDetailsTable" xlink:href="btdr-20250630.xsd#btdr_IntangibleAssetsandGoodwillScheduleofIntangibleAssetsandGoodwillDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:to="btdr_IntangibleAssetsandGoodwillScheduleofIntangibleAssetsandGoodwillDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_IntangibleAssetsandGoodwillScheduleofIntangibleAssetsandGoodwillDetailsTable" xlink:to="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountMember_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountMember_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_IntangibleAssetsandGoodwillScheduleofIntangibleAssetsandGoodwillDetailsTable" xlink:to="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:to="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:to="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_RightsToElectricalCapacityMember" xlink:href="btdr-20250630.xsd#btdr_RightsToElectricalCapacityMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:to="btdr_RightsToElectricalCapacityMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TechnologybasedIntangibleAssetsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TechnologybasedIntangibleAssetsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:to="ifrs-full_TechnologybasedIntangibleAssetsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:to="ifrs-full_CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherIntangibleAssetsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherIntangibleAssetsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:to="ifrs-full_OtherIntangibleAssetsMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwillMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwillMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:to="ifrs-full_IntangibleAssetsOtherThanGoodwillMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GoodwillMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GoodwillMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:to="ifrs-full_GoodwillMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GrossCarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossCarryingAmountMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_GrossCarryingAmountMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedDepreciationAndAmortisationMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_AccumulatedDepreciationAndAmortisationMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IntangibleAssetsAndGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsAndGoodwill"/>
<!-- [WMV6][Ta01tY97FhG07klX7dYjdjnRZMhOaDnVl/tqo+s/Lhv8BgNhWLVqwwHyuiFr1RKdQ76rmx2kUFNbYZD/uzFe+Uf3yNmiAZXXMuZeKr0feRu5babGce/Uf4Qefbl3fbdMfuw92sXt3i5l7kcKqSjiB0d1KJ3i4aF2ssdKbYXeyphgYUh9bSADCIPCa7KHKp76tZf5q+fQG2ABAF/SYsaMELRgmnE1D2uDB0sNr+OZ+koVGHeREYlbMwUWcYqF7dKXJ/iCWTkjz59cl+9V605sOey1QecJgTHGURE882a9jCoTTNPjMYNcI0+KEDUK6JDPgNGjM6Dtmizbac1XELtmH6equN6JQuXI1K+mMiqH5+bwW7EM] CSR-->
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:to="ifrs-full_IntangibleAssetsAndGoodwill" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:to="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:to="ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:to="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofRightofUseAssetsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_LeasesScheduleofRightofUseAssetsDetailsLineItems" xlink:href="btdr-20250630.xsd#btdr_LeasesScheduleofRightofUseAssetsDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_LeasesScheduleofRightofUseAssetsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_LeasesScheduleofRightofUseAssetsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="btdr_LeasesScheduleofRightofUseAssetsDetailsLineItems" xlink:to="btdr_LeasesScheduleofRightofUseAssetsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_LeasesScheduleofRightofUseAssetsDetailsTable" xlink:to="ifrs-full_ClassesOfAssetsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LandAndBuildingsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LandAndBuildingsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfAssetsDomain" xlink:to="ifrs-full_LandAndBuildingsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LeaseholdLandMember" xlink:href="btdr-20250630.xsd#btdr_LeaseholdLandMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfAssetsDomain" xlink:to="btdr_LeaseholdLandMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RightofuseAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_LeasesScheduleofRightofUseAssetsDetailsLineItems" xlink:to="ifrs-full_RightofuseAssets" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentProperty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_LeasesScheduleofRightofUseAssetsDetailsLineItems" xlink:to="ifrs-full_InvestmentProperty" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofProvisionforRestorationTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsAbstract" xlink:to="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IncreaseDecreaseInRestorationProvision" xlink:href="btdr-20250630.xsd#btdr_IncreaseDecreaseInRestorationProvision"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsAbstract" xlink:to="btdr_IncreaseDecreaseInRestorationProvision" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsAbstract" xlink:to="ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ExchangeAdjustmentsThroughAssetAcquisition" xlink:href="btdr-20250630.xsd#btdr_ExchangeAdjustmentsThroughAssetAcquisition"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsAbstract" xlink:to="btdr_ExchangeAdjustmentsThroughAssetAcquisition" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofLeaseLiabilitiesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PresentationOfLeasesForLesseeAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="ifrs-full_CurrentLeaseLiabilities" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="ifrs-full_NoncurrentLeaseLiabilities" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="ifrs-full_LeaseLiabilities" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofRecognizedProfitorLossTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PresentationOfLeasesForLesseeAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DepreciationRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationRightofuseAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="ifrs-full_DepreciationRightofuseAssets" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="ifrs-full_InterestExpense" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpenseRelatingToShorttermLeasesForWhichRecognitionExemptionHasBeenUsed" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseRelatingToShorttermLeasesForWhichRecognitionExemptionHasBeenUsed"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="ifrs-full_ExpenseRelatingToShorttermLeasesForWhichRecognitionExemptionHasBeenUsed" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesArisingFromSaleAndLeasebackTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesArisingFromSaleAndLeasebackTransactions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="ifrs-full_GainsLossesArisingFromSaleAndLeasebackTransactions" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LeaseRelatedExpenses" xlink:href="btdr-20250630.xsd#btdr_LeaseRelatedExpenses"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PresentationOfLeasesForLesseeAbstract" xlink:to="btdr_LeaseRelatedExpenses" order="5" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofBorrowingsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_BorrowingsScheduleofBorrowingsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_BorrowingsScheduleofBorrowingsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="btdr_BorrowingsScheduleofBorrowingsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_BorrowingsScheduleofBorrowingsDetailsTable" xlink:to="ifrs-full_BorrowingsByNameAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PromissoryNoteMember" xlink:href="btdr-20250630.xsd#btdr_PromissoryNoteMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_PromissoryNoteMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AugustTwoThousandAndTwentyFourConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_AugustTwoThousandAndTwentyFourConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_AugustTwoThousandAndTwentyFourConvertibleSeniorNotesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_NovemberTwoThousandAndTwentyFourConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_NovemberTwoThousandAndTwentyFourConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_NovemberTwoThousandAndTwentyFourConvertibleSeniorNotesMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_JuneTwoThousandAndTwentyFiveConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_JuneTwoThousandAndTwentyFiveConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_JuneTwoThousandAndTwentyFiveConvertibleSeniorNotesMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_BankLoansMember" xlink:href="btdr-20250630.xsd#btdr_BankLoansMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_BankLoansMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_OtherBorrowings" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ShorttermBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_ShorttermBorrowings" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LongtermBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LongtermBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_LongtermBorrowings" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Borrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Borrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_Borrowings" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofReconcilestheCarryingValueofConvertibleSeniorNotesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_BorrowingsScheduleofReconcilestheCarryingValueofConvertibleSeniorNotesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_BorrowingsScheduleofReconcilestheCarryingValueofConvertibleSeniorNotesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="btdr_BorrowingsScheduleofReconcilestheCarryingValueofConvertibleSeniorNotesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_BorrowingsScheduleofReconcilestheCarryingValueofConvertibleSeniorNotesDetailsTable" xlink:to="ifrs-full_BorrowingsByNameAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_August2024ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_August2024ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_August2024ConvertibleSeniorNotesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_November2024ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_November2024ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_November2024ConvertibleSeniorNotesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_June2025ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_June2025ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_June2025ConvertibleSeniorNotesMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IssueOfConvertibleInstruments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssueOfConvertibleInstruments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_IssueOfConvertibleInstruments" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PaymentsForDebtIssueCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsForDebtIssueCosts"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_PaymentsForDebtIssueCosts" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_CarryingValueOfConvertibleNotesAtInception" xlink:href="btdr-20250630.xsd#btdr_CarryingValueOfConvertibleNotesAtInception"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="btdr_CarryingValueOfConvertibleNotesAtInception" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AmortizationOfDebtDiscountOnBorrowings" xlink:href="btdr-20250630.xsd#btdr_AmortizationOfDebtDiscountOnBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="btdr_AmortizationOfDebtDiscountOnBorrowings" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RepaymentsOfBondsNotesAndDebentures" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfBondsNotesAndDebentures"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_RepaymentsOfBondsNotesAndDebentures" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Borrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Borrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_Borrowings" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofRepresentstheMovementofDerivativeLiabilitiesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_DerivativeLiabilitiesScheduleofRepresentstheMovementofDerivativeLiabilitiesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_DerivativeLiabilitiesScheduleofRepresentstheMovementofDerivativeLiabilitiesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_DerivativeLiabilitiesScheduleofRepresentstheMovementofDerivativeLiabilitiesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_SegmentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SegmentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_DerivativeLiabilitiesScheduleofRepresentstheMovementofDerivativeLiabilitiesDetailsTable" xlink:to="ifrs-full_SegmentsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_SegmentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SegmentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_SegmentsAxis" xlink:to="ifrs-full_SegmentsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_SegmentsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SegmentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_SegmentsAxis" xlink:to="ifrs-full_SegmentsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDerivativeFinancialLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_CurrentDerivativeFinancialLiabilities" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IssuesFairValueMeasurementConvertibleNotes" xlink:href="btdr-20250630.xsd#btdr_IssuesFairValueMeasurementConvertibleNotes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_IssuesFairValueMeasurementConvertibleNotes" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DerecognitionOfDerivativeLiabilitiesOnConversion" xlink:href="btdr-20250630.xsd#btdr_DerecognitionOfDerivativeLiabilitiesOnConversion"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_DerecognitionOfDerivativeLiabilitiesOnConversion" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IssuanceOfTetherWarrants" xlink:href="btdr-20250630.xsd#btdr_IssuanceOfTetherWarrants"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_IssuanceOfTetherWarrants" order="4" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofDerivativeLiabilitiesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_DerivativeLiabilitiesScheduleofDerivativeLiabilitiesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_DerivativeLiabilitiesScheduleofDerivativeLiabilitiesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="btdr_DerivativeLiabilitiesScheduleofDerivativeLiabilitiesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_DerivativeLiabilitiesScheduleofDerivativeLiabilitiesDetailsTable" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_August2024ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_August2024ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_August2024ConvertibleSeniorNotesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_November2024ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_November2024ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_November2024ConvertibleSeniorNotesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_June2025ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_June2025ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_June2025ConvertibleSeniorNotesMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IssuesFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuesFairValueMeasurementLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="ifrs-full_IssuesFairValueMeasurementLiabilities" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IssueOfConvertibleInstruments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssueOfConvertibleInstruments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="ifrs-full_IssueOfConvertibleInstruments" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="ifrs-full_DerivativeFinancialLiabilities" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofValueofDerivativeLiabilityTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_DerivativeLiabilitiesScheduleofValueofDerivativeLiabilityDetailsTable" xlink:href="btdr-20250630.xsd#btdr_DerivativeLiabilitiesScheduleofValueofDerivativeLiabilityDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" xlink:to="btdr_DerivativeLiabilitiesScheduleofValueofDerivativeLiabilityDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_DerivativeLiabilitiesScheduleofValueofDerivativeLiabilityDetailsTable" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_DerivativeLiabilitiesScheduleofValueofDerivativeLiabilityDetailsTable" xlink:to="ifrs-full_RangeAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DerivativeWarrantMember" xlink:href="btdr-20250630.xsd#btdr_DerivativeWarrantMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_DerivativeWarrantMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_BottomOfRangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_TopOfRangeMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" xlink:to="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" xlink:to="ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" xlink:to="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" xlink:to="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofModelIncorporatestheFollowingKeyInputsandAssumptionsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_DerivativeLiabilitiesScheduleofModelIncorporatestheFollowingKeyInputsandAssumptionsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_DerivativeLiabilitiesScheduleofModelIncorporatestheFollowingKeyInputsandAssumptionsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="btdr_DerivativeLiabilitiesScheduleofModelIncorporatestheFollowingKeyInputsandAssumptionsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_DerivativeLiabilitiesScheduleofModelIncorporatestheFollowingKeyInputsandAssumptionsDetailsTable" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_DerivativeLiabilitiesScheduleofModelIncorporatestheFollowingKeyInputsandAssumptionsDetailsTable" xlink:to="ifrs-full_RangeAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DerivativeLiabilityMember" xlink:href="btdr-20250630.xsd#btdr_DerivativeLiabilityMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_DerivativeLiabilityMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IssuanceOfAugust2024ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_IssuanceOfAugust2024ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_IssuanceOfAugust2024ConvertibleSeniorNotesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_June2025ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_June2025ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_June2025ConvertibleSeniorNotesMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_BottomOfRangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_TopOfRangeMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofOtherPayablesandAccrualsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DepositsFromCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepositsFromCustomers"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="ifrs-full_DepositsFromCustomers" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Accruals" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Accruals"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="ifrs-full_Accruals" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PayablesForSurtaxes" xlink:href="btdr-20250630.xsd#btdr_PayablesForSurtaxes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="btdr_PayablesForSurtaxes" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestPayable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestPayable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="ifrs-full_InterestPayable" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PayableToFormerOwnersOfAcquisitions" xlink:href="btdr-20250630.xsd#btdr_PayableToFormerOwnersOfAcquisitions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="btdr_PayableToFormerOwnersOfAcquisitions" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProvisionsForEmployeeBenefits" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProvisionsForEmployeeBenefits"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="ifrs-full_ProvisionsForEmployeeBenefits" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ShorttermWarrantyProvision" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermWarrantyProvision"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="ifrs-full_ShorttermWarrantyProvision" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_OtherPayablesAndAccrual" xlink:href="btdr-20250630.xsd#btdr_OtherPayablesAndAccrual"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="btdr_OtherPayablesAndAccrual" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherPayables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="ifrs-full_OtherPayables" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherCurrentPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentPayables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="ifrs-full_OtherCurrentPayables" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherNoncurrentPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentPayables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="ifrs-full_OtherNoncurrentPayables" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_OtherPayablesAndAccrualsUndiscountedCashFlows" xlink:href="btdr-20250630.xsd#btdr_OtherPayablesAndAccrualsUndiscountedCashFlows"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="btdr_OtherPayablesAndAccrualsUndiscountedCashFlows" order="12" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofExpensesbyNatureTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_ExpensesbyNatureandOtherIncomeandExpensesItemsScheduleofExpensesbyNatureDetailsTable" xlink:href="btdr-20250630.xsd#btdr_ExpensesbyNatureandOtherIncomeandExpensesItemsScheduleofExpensesbyNatureDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="btdr_ExpensesbyNatureandOtherIncomeandExpensesItemsScheduleofExpensesbyNatureDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_ExpensesbyNatureandOtherIncomeandExpensesItemsScheduleofExpensesbyNatureDetailsTable" xlink:to="ifrs-full_ClassesOfAssetsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_MiningRigsMember" xlink:href="btdr-20250630.xsd#btdr_MiningRigsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfAssetsDomain" xlink:to="btdr_MiningRigsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfAssetsDomain" xlink:to="ifrs-full_PropertyPlantAndEquipmentMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InvestmentPropertyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentPropertyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfAssetsDomain" xlink:to="ifrs-full_InvestmentPropertyMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RightofuseAssetsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RightofuseAssetsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfAssetsDomain" xlink:to="ifrs-full_RightofuseAssetsMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ShorttermEmployeeBenefitsExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermEmployeeBenefitsExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_ShorttermEmployeeBenefitsExpense" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AmortisationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AmortisationExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_AmortisationExpense" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DepreciationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_DepreciationExpense" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_UtilitiesExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UtilitiesExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_UtilitiesExpense" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CostOfMerchandiseSold" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CostOfMerchandiseSold"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_CostOfMerchandiseSold" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_OneOffIncrementalDevelopmentExpense" xlink:href="btdr-20250630.xsd#btdr_OneOffIncrementalDevelopmentExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="btdr_OneOffIncrementalDevelopmentExpense" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfessionalFeesExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfessionalFeesExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_ProfessionalFeesExpense" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ResearchAndDevelopmentExpenseTechnicalServiceFee" xlink:href="btdr-20250630.xsd#btdr_ResearchAndDevelopmentExpenseTechnicalServiceFee"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="btdr_ResearchAndDevelopmentExpenseTechnicalServiceFee" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdministrativeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdministrativeExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_AdministrativeExpense" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TravelExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TravelExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_TravelExpense" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpenseRelatingToLeasesOfLowvalueAssetsForWhichRecognitionExemptionHasBeenUsed" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseRelatingToLeasesOfLowvalueAssetsForWhichRecognitionExemptionHasBeenUsed"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_ExpenseRelatingToLeasesOfLowvalueAssetsForWhichRecognitionExemptionHasBeenUsed" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InsuranceExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InsuranceExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_InsuranceExpense" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdvertisingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdvertisingExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_AdvertisingExpense" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TransportationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TransportationExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_TransportationExpense" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpenseRelatingToShorttermLeasesForWhichRecognitionExemptionHasBeenUsed" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseRelatingToShorttermLeasesForWhichRecognitionExemptionHasBeenUsed"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_ExpenseRelatingToShorttermLeasesForWhichRecognitionExemptionHasBeenUsed" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ImpairmentLossOfMiningRigs" xlink:href="btdr-20250630.xsd#btdr_ImpairmentLossOfMiningRigs"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="btdr_ImpairmentLossOfMiningRigs" order="17" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherExpenseByNature" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherExpenseByNature"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_OtherExpenseByNature" order="18" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpenseByNature" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseByNature"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_ExpenseByNature" order="19" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofOtherOperatingIncomeExpensesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_ScheduleOfOtherOperatingIncomeExpensesAbstract" xlink:href="btdr-20250630.xsd#btdr_ScheduleOfOtherOperatingIncomeExpensesAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_NetGainsLossesOnDisposalOfCryptocurrencies" xlink:href="btdr-20250630.xsd#btdr_NetGainsLossesOnDisposalOfCryptocurrencies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherOperatingIncomeExpensesAbstract" xlink:to="btdr_NetGainsLossesOnDisposalOfCryptocurrencies" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ImpairmentLossOnCryptocurrencies" xlink:href="btdr-20250630.xsd#btdr_ImpairmentLossOnCryptocurrencies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherOperatingIncomeExpensesAbstract" xlink:to="btdr_ImpairmentLossOnCryptocurrencies" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ChangeInFairValueOfCryptocurrencySettledReceivablesAndPayables" xlink:href="btdr-20250630.xsd#btdr_ChangeInFairValueOfCryptocurrencySettledReceivablesAndPayables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherOperatingIncomeExpensesAbstract" xlink:to="btdr_ChangeInFairValueOfCryptocurrencySettledReceivablesAndPayables" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MiscellaneousOtherOperatingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MiscellaneousOtherOperatingExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherOperatingIncomeExpensesAbstract" xlink:to="ifrs-full_MiscellaneousOtherOperatingExpense" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherOperatingIncomeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherOperatingIncomeExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherOperatingIncomeExpensesAbstract" xlink:to="ifrs-full_OtherOperatingIncomeExpense" order="4" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofOtherNetGainsLossesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_ScheduleOfOtherNetGainsLossesAbstract" xlink:href="btdr-20250630.xsd#btdr_ScheduleOfOtherNetGainsLossesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesRecognisedInProfitOrLossExcludingExchangeDifferencesFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossExcludingExchangeDifferencesFairValueMeasurementLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherNetGainsLossesAbstract" xlink:to="ifrs-full_GainsLossesRecognisedInProfitOrLossExcludingExchangeDifferencesFairValueMeasurementLiabilities" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RevenueFromGovernmentGrants" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromGovernmentGrants"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherNetGainsLossesAbstract" xlink:to="ifrs-full_RevenueFromGovernmentGrants" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherNetGainsLossesAbstract" xlink:to="ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherNetGainsLossesAbstract" xlink:to="ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AdjustmentsForGainLossOnConvertibleDebtModification" xlink:href="btdr-20250630.xsd#btdr_AdjustmentsForGainLossOnConvertibleDebtModification"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherNetGainsLossesAbstract" xlink:to="btdr_AdjustmentsForGainLossOnConvertibleDebtModification" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_OtherMiscellaneousGainsLosses" xlink:href="btdr-20250630.xsd#btdr_OtherMiscellaneousGainsLosses"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherNetGainsLossesAbstract" xlink:to="btdr_OtherMiscellaneousGainsLosses" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherGainsLosses" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherGainsLosses"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfOtherNetGainsLossesAbstract" xlink:to="ifrs-full_OtherGainsLosses" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofFinanceIncomeExpensesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_ScheduleOfFinanceIncomeExpensesAbstract" xlink:href="btdr-20250630.xsd#btdr_ScheduleOfFinanceIncomeExpensesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RevenueFromInterest" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromInterest"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfFinanceIncomeExpensesAbstract" xlink:to="ifrs-full_RevenueFromInterest" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfFinanceIncomeExpensesAbstract" xlink:to="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_UnwindOfDiscountOnRestorationProvision" xlink:href="btdr-20250630.xsd#btdr_UnwindOfDiscountOnRestorationProvision"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfFinanceIncomeExpensesAbstract" xlink:to="btdr_UnwindOfDiscountOnRestorationProvision" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_CryptocurrencyTransactionServiceFee" xlink:href="btdr-20250630.xsd#btdr_CryptocurrencyTransactionServiceFee"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfFinanceIncomeExpensesAbstract" xlink:to="btdr_CryptocurrencyTransactionServiceFee" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnLeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfFinanceIncomeExpensesAbstract" xlink:to="ifrs-full_InterestExpenseOnLeaseLiabilities" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestExpenseOnBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfFinanceIncomeExpensesAbstract" xlink:to="ifrs-full_InterestExpenseOnBorrowings" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherFinanceCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherFinanceCost"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfFinanceIncomeExpensesAbstract" xlink:to="ifrs-full_OtherFinanceCost" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinanceIncomeCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceIncomeCost"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfFinanceIncomeExpensesAbstract" xlink:to="ifrs-full_FinanceIncomeCost" order="7" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofNumberofSharesandWeightedAverageExercisePricesandMovementsofShareAwardsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfOutstandingShareOptions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfOutstandingShareOptions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_NumberOfOutstandingShareOptions" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_WeightedAverageFairValueOfShareOptionsOutstandingInShareBasedPaymentArrangement" xlink:href="btdr-20250630.xsd#btdr_WeightedAverageFairValueOfShareOptionsOutstandingInShareBasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="btdr_WeightedAverageFairValueOfShareOptionsOutstandingInShareBasedPaymentArrangement" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_WeightedAverageFairValueOfShareOptionsGrantedInShareBasedPaymentArrangement" xlink:href="btdr-20250630.xsd#btdr_WeightedAverageFairValueOfShareOptionsGrantedInShareBasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="btdr_WeightedAverageFairValueOfShareOptionsGrantedInShareBasedPaymentArrangement" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_WeightedAverageFairValueOfShareOptionsExercisedInShareBasedPaymentArrangement" xlink:href="btdr-20250630.xsd#btdr_WeightedAverageFairValueOfShareOptionsExercisedInShareBasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="btdr_WeightedAverageFairValueOfShareOptionsExercisedInShareBasedPaymentArrangement" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_WeightedAverageFairValueOfShareOptionsForfeitedInShareBasedPaymentArrangement" xlink:href="btdr-20250630.xsd#btdr_WeightedAverageFairValueOfShareOptionsForfeitedInShareBasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="btdr_WeightedAverageFairValueOfShareOptionsForfeitedInShareBasedPaymentArrangement" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_NumberOfShareOptionsVestedAndExercisableInShareBasedPaymentArrangement" xlink:href="btdr-20250630.xsd#btdr_NumberOfShareOptionsVestedAndExercisableInShareBasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="btdr_NumberOfShareOptionsVestedAndExercisableInShareBasedPaymentArrangement" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_WeightedAverageExercisePriceOfShareOptionsVestedAndExercisableInShareBasedPaymentArrangement" xlink:href="btdr-20250630.xsd#btdr_WeightedAverageExercisePriceOfShareOptionsVestedAndExercisableInShareBasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="btdr_WeightedAverageExercisePriceOfShareOptionsVestedAndExercisableInShareBasedPaymentArrangement" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_WeightedAverageFairValueOfShareOptionsVestedAndExercisableInShareBasedPaymentArrangement" xlink:href="btdr-20250630.xsd#btdr_WeightedAverageFairValueOfShareOptionsVestedAndExercisableInShareBasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="btdr_WeightedAverageFairValueOfShareOptionsVestedAndExercisableInShareBasedPaymentArrangement" order="14" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofShareBasedCompensationExpenseTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_ShareBasedPaymentsScheduleofShareBasedCompensationExpenseDetailsTable" xlink:href="btdr-20250630.xsd#btdr_ShareBasedPaymentsScheduleofShareBasedCompensationExpenseDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="btdr_ShareBasedPaymentsScheduleofShareBasedCompensationExpenseDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_ShareBasedPaymentsScheduleofShareBasedCompensationExpenseDetailsTable" xlink:to="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:to="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:to="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CostOfSalesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CostOfSalesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:to="ifrs-full_CostOfSalesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_SellingExpensesMember" xlink:href="btdr-20250630.xsd#btdr_SellingExpensesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:to="btdr_SellingExpensesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_GeneralAndAdministrativeExpensesMember" xlink:href="btdr-20250630.xsd#btdr_GeneralAndAdministrativeExpensesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:to="btdr_GeneralAndAdministrativeExpensesMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ResearchAndDevelopmentExpensesMember" xlink:href="btdr-20250630.xsd#btdr_ResearchAndDevelopmentExpensesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:to="btdr_ResearchAndDevelopmentExpensesMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForSharebasedPayments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForSharebasedPayments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems" xlink:to="ifrs-full_AdjustmentsForSharebasedPayments" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofProvidestheInputsRangeTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_ShareBasedPaymentsScheduleofProvidestheInputsRangeDetailsTable" xlink:href="btdr-20250630.xsd#btdr_ShareBasedPaymentsScheduleofProvidestheInputsRangeDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="btdr_ShareBasedPaymentsScheduleofProvidestheInputsRangeDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_ShareBasedPaymentsScheduleofProvidestheInputsRangeDetailsTable" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_ShareBasedPaymentsScheduleofProvidestheInputsRangeDetailsTable" xlink:to="ifrs-full_RangeAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IncrementalFairValueMember" xlink:href="btdr-20250630.xsd#btdr_IncrementalFairValueMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:to="btdr_IncrementalFairValueMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_BottomOfRangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_TopOfRangeMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExercisePriceShareOptionsGranted2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExercisePriceShareOptionsGranted2019"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_ExercisePriceShareOptionsGranted2019" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleoftheMovementsofSharesandShareCapitalTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_EquityScheduleoftheMovementsofSharesandShareCapitalDetailsTable" xlink:href="btdr-20250630.xsd#btdr_EquityScheduleoftheMovementsofSharesandShareCapitalDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_EquityScheduleoftheMovementsofSharesandShareCapitalDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_EquityScheduleoftheMovementsofSharesandShareCapitalDetailsTable" xlink:to="ifrs-full_ClassesOfOrdinarySharesAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ClassAOrdinarySharesMember" xlink:href="btdr-20250630.xsd#btdr_ClassAOrdinarySharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="btdr_ClassAOrdinarySharesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ClassVOrdinarySharesMember" xlink:href="btdr-20250630.xsd#btdr_ClassVOrdinarySharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="btdr_ClassVOrdinarySharesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfSharesOutstanding" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesOutstanding"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_NumberOfSharesOutstanding" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Equity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_Equity" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughExerciseOfOptions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IssueOfEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssueOfEquity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_IssueOfEquity" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_NumberOfShareIssuanceOfSharesForExerciseOfWarrant" xlink:href="btdr-20250630.xsd#btdr_NumberOfShareIssuanceOfSharesForExerciseOfWarrant"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_NumberOfShareIssuanceOfSharesForExerciseOfWarrant" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IncreaseDecreaseThroughTreasuryShareTransactionsEquityShares" xlink:href="btdr-20250630.xsd#btdr_IncreaseDecreaseThroughTreasuryShareTransactionsEquityShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_IncreaseDecreaseThroughTreasuryShareTransactionsEquityShares" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PurchaseOfTreasuryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfTreasuryShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_PurchaseOfTreasuryShares" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IssuanceOfSharesInConnectionWithConversionOfConvertibleNote" xlink:href="btdr-20250630.xsd#btdr_IssuanceOfSharesInConnectionWithConversionOfConvertibleNote"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_IssuanceOfSharesInConnectionWithConversionOfConvertibleNote" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ConversionOfClassVToClassAOrdinaryShares" xlink:href="btdr-20250630.xsd#btdr_ConversionOfClassVToClassAOrdinaryShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_ConversionOfClassVToClassAOrdinaryShares" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ConversionOfClassVToClassAOrdinarySharesAmount" xlink:href="btdr-20250630.xsd#btdr_ConversionOfClassVToClassAOrdinarySharesAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_ConversionOfClassVToClassAOrdinarySharesAmount" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IssuanceOfSharesAsConsiderationForTheNorwayAcquisition" xlink:href="btdr-20250630.xsd#btdr_IssuanceOfSharesAsConsiderationForTheNorwayAcquisition"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_IssuanceOfSharesAsConsiderationForTheNorwayAcquisition" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" order="14" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofProvisionsforIncomeTaxesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxExpenseIncome"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:to="ifrs-full_CurrentTaxExpenseIncome" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxExpenseIncome"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:to="ifrs-full_DeferredTaxExpenseIncome" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:to="ifrs-full_IncomeTaxExpenseContinuingOperations" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofDeferredTaxLiabilitiesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_ScheduleOfDeferredTaxAssetsLiabilitiesLineItems" xlink:href="btdr-20250630.xsd#btdr_ScheduleOfDeferredTaxAssetsLiabilitiesLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_TaxationScheduleofDeferredTaxLiabilitiesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_TaxationScheduleofDeferredTaxLiabilitiesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="btdr_ScheduleOfDeferredTaxAssetsLiabilitiesLineItems" xlink:to="btdr_TaxationScheduleofDeferredTaxLiabilitiesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_TaxationScheduleofDeferredTaxLiabilitiesDetailsTable" xlink:to="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:to="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:to="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_UnusedTaxLossesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UnusedTaxLossesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="ifrs-full_UnusedTaxLossesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ShareBasedPaymentsMember" xlink:href="btdr-20250630.xsd#btdr_ShareBasedPaymentsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="btdr_ShareBasedPaymentsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DeferredRevenueMember" xlink:href="btdr-20250630.xsd#btdr_DeferredRevenueMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="btdr_DeferredRevenueMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PropertyPlantAndEquipmentIntangibleAssetsAndRightOfUseAssetsMember" xlink:href="btdr-20250630.xsd#btdr_PropertyPlantAndEquipmentIntangibleAssetsAndRightOfUseAssetsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="btdr_PropertyPlantAndEquipmentIntangibleAssetsAndRightOfUseAssetsMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ImpairmentChargesMember" xlink:href="btdr-20250630.xsd#btdr_ImpairmentChargesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="btdr_ImpairmentChargesMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DeferredTaxAssetsBeforeSetOffDeferredTaxPositionRelatedToIncomeTaxesLeviedBySameTaxAuthority" xlink:href="btdr-20250630.xsd#btdr_DeferredTaxAssetsBeforeSetOffDeferredTaxPositionRelatedToIncomeTaxesLeviedBySameTaxAuthority"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfDeferredTaxAssetsLiabilitiesLineItems" xlink:to="btdr_DeferredTaxAssetsBeforeSetOffDeferredTaxPositionRelatedToIncomeTaxesLeviedBySameTaxAuthority" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_SetOffOfDeferredTaxAssetsPositionsRelateToIncomeTaxesLeviedBySameTaxAuthority" xlink:href="btdr-20250630.xsd#btdr_SetOffOfDeferredTaxAssetsPositionsRelateToIncomeTaxesLeviedBySameTaxAuthority"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfDeferredTaxAssetsLiabilitiesLineItems" xlink:to="btdr_SetOffOfDeferredTaxAssetsPositionsRelateToIncomeTaxesLeviedBySameTaxAuthority" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfDeferredTaxAssetsLiabilitiesLineItems" xlink:to="ifrs-full_DeferredTaxAssets" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DeferredTaxLiabilitiesBeforeSetOffDeferredTaxPositionRelatedToIncomeTaxesLeviedBySameTaxAuthority" xlink:href="btdr-20250630.xsd#btdr_DeferredTaxLiabilitiesBeforeSetOffDeferredTaxPositionRelatedToIncomeTaxesLeviedBySameTaxAuthority"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfDeferredTaxAssetsLiabilitiesLineItems" xlink:to="btdr_DeferredTaxLiabilitiesBeforeSetOffDeferredTaxPositionRelatedToIncomeTaxesLeviedBySameTaxAuthority" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_SetOffOfDeferredTaxLiabilitiesPositionsRelateToIncomeTaxesLeviedBySameTaxAuthority" xlink:href="btdr-20250630.xsd#btdr_SetOffOfDeferredTaxLiabilitiesPositionsRelateToIncomeTaxesLeviedBySameTaxAuthority"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfDeferredTaxAssetsLiabilitiesLineItems" xlink:to="btdr_SetOffOfDeferredTaxLiabilitiesPositionsRelateToIncomeTaxesLeviedBySameTaxAuthority" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfDeferredTaxAssetsLiabilitiesLineItems" xlink:to="ifrs-full_DeferredTaxLiabilities" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilityAsset"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfDeferredTaxAssetsLiabilitiesLineItems" xlink:to="ifrs-full_DeferredTaxLiabilityAsset" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofMovementsintheNetDeferredTaxLiabilitiesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_ScheduleOfMovementsInTheNetDeferredTaxAssetsLiabilitiesLineItems" xlink:href="btdr-20250630.xsd#btdr_ScheduleOfMovementsInTheNetDeferredTaxAssetsLiabilitiesLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_TaxationScheduleofMovementsintheNetDeferredTaxLiabilitiesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_TaxationScheduleofMovementsintheNetDeferredTaxLiabilitiesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="btdr_ScheduleOfMovementsInTheNetDeferredTaxAssetsLiabilitiesLineItems" xlink:to="btdr_TaxationScheduleofMovementsintheNetDeferredTaxLiabilitiesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_TaxationScheduleofMovementsintheNetDeferredTaxLiabilitiesDetailsTable" xlink:to="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:to="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:to="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TaxLossesCarriedForwardMember" xlink:href="btdr-20250630.xsd#btdr_TaxLossesCarriedForwardMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="btdr_TaxLossesCarriedForwardMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ShareBasedPaymentsMember" xlink:href="btdr-20250630.xsd#btdr_ShareBasedPaymentsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="btdr_ShareBasedPaymentsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DeferredRevenueMember" xlink:href="btdr-20250630.xsd#btdr_DeferredRevenueMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="btdr_DeferredRevenueMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PropertyPlantAndEquipmentIntangibleAssetsAndRightOfUseAssetsMember" xlink:href="btdr-20250630.xsd#btdr_PropertyPlantAndEquipmentIntangibleAssetsAndRightOfUseAssetsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="btdr_PropertyPlantAndEquipmentIntangibleAssetsAndRightOfUseAssetsMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ImpairmentChargesMember" xlink:href="btdr-20250630.xsd#btdr_ImpairmentChargesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="btdr_ImpairmentChargesMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_UnusedTaxLossesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UnusedTaxLossesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="ifrs-full_UnusedTaxLossesMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NetDeferredTaxLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NetDeferredTaxLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfMovementsInTheNetDeferredTaxAssetsLiabilitiesLineItems" xlink:to="ifrs-full_NetDeferredTaxLiabilities" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfMovementsInTheNetDeferredTaxAssetsLiabilitiesLineItems" xlink:to="ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_ScheduleOfMovementsInTheNetDeferredTaxAssetsLiabilitiesLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofDeductibleTemporaryDifferencesandaPortionoftheTaxLossCarryForwardTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_TaxationScheduleofDeductibleTemporaryDifferencesandaPortionoftheTaxLossCarryForwardDetailsTable" xlink:href="btdr-20250630.xsd#btdr_TaxationScheduleofDeductibleTemporaryDifferencesandaPortionoftheTaxLossCarryForwardDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:to="btdr_TaxationScheduleofDeductibleTemporaryDifferencesandaPortionoftheTaxLossCarryForwardDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GeographicalAreasAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_TaxationScheduleofDeductibleTemporaryDifferencesandaPortionoftheTaxLossCarryForwardDetailsTable" xlink:to="ifrs-full_GeographicalAreasAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GeographicalAreasDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_GeographicalAreasAxis" xlink:to="ifrs-full_GeographicalAreasDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GeographicalAreasDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_GeographicalAreasAxis" xlink:to="ifrs-full_GeographicalAreasDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_StatementGeographicalAxis" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_StatementGeographicalAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_TaxationScheduleofDeductibleTemporaryDifferencesandaPortionoftheTaxLossCarryForwardDetailsTable" xlink:to="srt_StatementGeographicalAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_SegmentGeographicalDomain" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SegmentGeographicalDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_SegmentGeographicalDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_SegmentGeographicalDomain_0" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SegmentGeographicalDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_SegmentGeographicalDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_SG" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_SG"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="country_SG" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_US" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_US"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="country_US" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_HK" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_HK"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="country_HK" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_NL" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_NL"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="country_NL" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_TH" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_TH"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="country_TH" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_NO" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_NO"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="country_NO" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:to="ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:to="ifrs-full_DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofCompensationforkeyManagementandBoardofDirectorsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:to="ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_KeyManagementPersonnelCompensation" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensation"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:to="ifrs-full_KeyManagementPersonnelCompensation" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofRelatedPartyBalancesandTransactionsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_RelatedPartyTransactionsScheduleofRelatedPartyBalancesandTransactionsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_RelatedPartyTransactionsScheduleofRelatedPartyBalancesandTransactionsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="btdr_RelatedPartyTransactionsScheduleofRelatedPartyBalancesandTransactionsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_RelatedPartyTransactionsScheduleofRelatedPartyBalancesandTransactionsDetailsTable" xlink:to="ifrs-full_CategoriesOfRelatedPartiesAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_MatrixportGroupMember" xlink:href="btdr-20250630.xsd#btdr_MatrixportGroupMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="btdr_MatrixportGroupMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherRelatedPartiesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherRelatedPartiesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="ifrs-full_OtherRelatedPartiesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfNatureOfRelatedPartyRelationship" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfNatureOfRelatedPartyRelationship"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_DescriptionOfNatureOfRelatedPartyRelationship" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeReceivables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_TradeReceivables" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherReceivables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_OtherReceivables" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherReceivablesDueFromRelatedParties" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherReceivablesDueFromRelatedParties"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_TradeAndOtherReceivablesDueFromRelatedParties" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherPayables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_OtherPayables" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_OtherBorrowings" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_BorrowingFromRelatedParties" xlink:href="btdr-20250630.xsd#btdr_BorrowingFromRelatedParties"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="btdr_BorrowingFromRelatedParties" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ServicesReceivedRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ServicesReceivedRelatedPartyTransactions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_ServicesReceivedRelatedPartyTransactions" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_SalesOfPropertyAndOtherAssetsRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SalesOfPropertyAndOtherAssetsRelatedPartyTransactions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_SalesOfPropertyAndOtherAssetsRelatedPartyTransactions" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestExpenseOnBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_InterestExpenseOnBorrowings" order="12" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofBasicandDilutedLossPerOrdinaryShareTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_EarningsPerShareAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="ifrs-full_ProfitLoss" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="ifrs-full_WeightedAverageShares" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BasicEarningsLossPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BasicEarningsLossPerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="ifrs-full_BasicEarningsLossPerShare" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ImpactOfDerivativeLiabilitiesRelatedToTheWarrants" xlink:href="btdr-20250630.xsd#btdr_ImpactOfDerivativeLiabilitiesRelatedToTheWarrants"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="btdr_ImpactOfDerivativeLiabilitiesRelatedToTheWarrants" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ImpactOfDerivativeLiabilitiesRelatedToTheConvertibleNotes" xlink:href="btdr-20250630.xsd#btdr_ImpactOfDerivativeLiabilitiesRelatedToTheConvertibleNotes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="btdr_ImpactOfDerivativeLiabilitiesRelatedToTheConvertibleNotes" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AssumedExerciseOfWarrants" xlink:href="btdr-20250630.xsd#btdr_AssumedExerciseOfWarrants"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="btdr_AssumedExerciseOfWarrants" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AssumedConversionOfConvertibleNotesinShares" xlink:href="btdr-20250630.xsd#btdr_AssumedConversionOfConvertibleNotesinShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="btdr_AssumedConversionOfConvertibleNotesinShares" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustedWeightedAverageShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustedWeightedAverageShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="ifrs-full_AdjustedWeightedAverageShares" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DilutedEarningsLossPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DilutedEarningsLossPerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="ifrs-full_DilutedEarningsLossPerShare" order="9" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ScheduleofNonCashInvestingandFinancingActivitiesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:href="btdr-20250630.xsd#btdr_NonCashInvestingAndFinancingActivitiesAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_OperatingLeaseRightOfUseAssetsAndLeaseholdLandObtainedInExchangeForOperatingLeaseLiabilities" xlink:href="btdr-20250630.xsd#btdr_OperatingLeaseRightOfUseAssetsAndLeaseholdLandObtainedInExchangeForOperatingLeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_OperatingLeaseRightOfUseAssetsAndLeaseholdLandObtainedInExchangeForOperatingLeaseLiabilities" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PaymentForPurchaseOfPropertyPlantAndEquipmentInFormOfCryptocurrencies" xlink:href="btdr-20250630.xsd#btdr_PaymentForPurchaseOfPropertyPlantAndEquipmentInFormOfCryptocurrencies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_PaymentForPurchaseOfPropertyPlantAndEquipmentInFormOfCryptocurrencies" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_BorrowingCostsCapitalizedAsAdditionalToPropertyPlantAndEquipment" xlink:href="btdr-20250630.xsd#btdr_BorrowingCostsCapitalizedAsAdditionalToPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_BorrowingCostsCapitalizedAsAdditionalToPropertyPlantAndEquipment" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LiabilitiesAssumedInConnectionWithPaymentForMiningRigs" xlink:href="btdr-20250630.xsd#btdr_LiabilitiesAssumedInConnectionWithPaymentForMiningRigs"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_LiabilitiesAssumedInConnectionWithPaymentForMiningRigs" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LiabilitiesAssumedInConnectionWithAcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets" xlink:href="btdr-20250630.xsd#btdr_LiabilitiesAssumedInConnectionWithAcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_LiabilitiesAssumedInConnectionWithAcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PrepaymentsRealizedAsAdditionsToPropertyPlantAndEquipment" xlink:href="btdr-20250630.xsd#btdr_PrepaymentsRealizedAsAdditionsToPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_PrepaymentsRealizedAsAdditionsToPropertyPlantAndEquipment" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TransferOfInventoryToMiningRigs" xlink:href="btdr-20250630.xsd#btdr_TransferOfInventoryToMiningRigs"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_TransferOfInventoryToMiningRigs" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_SettlementOfPreExistingDebtorRelationshipInTheBusinessCombination" xlink:href="btdr-20250630.xsd#btdr_SettlementOfPreExistingDebtorRelationshipInTheBusinessCombination"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_SettlementOfPreExistingDebtorRelationshipInTheBusinessCombination" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IssuanceOfClassAOrdinarySharesAndShareOptionsInConnectionWithTheFreeChainAcquisition" xlink:href="btdr-20250630.xsd#btdr_IssuanceOfClassAOrdinarySharesAndShareOptionsInConnectionWithTheFreeChainAcquisition"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_IssuanceOfClassAOrdinarySharesAndShareOptionsInConnectionWithTheFreeChainAcquisition" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_CancellationOfRepurchasedTreasuryShares" xlink:href="btdr-20250630.xsd#btdr_CancellationOfRepurchasedTreasuryShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_CancellationOfRepurchasedTreasuryShares" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LiabilitiesAssumedInConnectionWithIssuanceOfSharesInConnectionWithConversionOfConvertibleNotes" xlink:href="btdr-20250630.xsd#btdr_LiabilitiesAssumedInConnectionWithIssuanceOfSharesInConnectionWithConversionOfConvertibleNotes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_LiabilitiesAssumedInConnectionWithIssuanceOfSharesInConnectionWithConversionOfConvertibleNotes" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IssuanceOfClassAOrdinarySharesInConnectionWithConversionOfConvertibleNotes" xlink:href="btdr-20250630.xsd#btdr_IssuanceOfClassAOrdinarySharesInConnectionWithConversionOfConvertibleNotes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_NonCashInvestingAndFinancingActivitiesAbstract" xlink:to="btdr_IssuanceOfClassAOrdinarySharesInConnectionWithConversionOfConvertibleNotes" order="11" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/FinancialRiskManagementandFairValuesofFinancialInstrumentsDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsAbstract" xlink:to="ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/BusinessCombinationDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_BusinessCombinationDetailsTable" xlink:href="btdr-20250630.xsd#btdr_BusinessCombinationDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="btdr_BusinessCombinationDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_BusinessCombinationDetailsTable" xlink:to="ifrs-full_BusinessCombinationsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TrollHousingASAndTydalDataCenterASMember" xlink:href="btdr-20250630.xsd#btdr_TrollHousingASAndTydalDataCenterASMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BusinessCombinationsDomain" xlink:to="btdr_TrollHousingASAndTydalDataCenterASMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PercentageOfVotingEquityInterestsAcquired"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="ifrs-full_PercentageOfVotingEquityInterestsAcquired" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromCurrentBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromCurrentBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="ifrs-full_ProceedsFromCurrentBorrowings" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsInterestRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsInterestRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="ifrs-full_BorrowingsInterestRate" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsMaturity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsMaturity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="ifrs-full_BorrowingsMaturity" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PercentageOfSharesPledged" xlink:href="btdr-20250630.xsd#btdr_PercentageOfSharesPledged"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="btdr_PercentageOfSharesPledged" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_StrikePriceShareOptionsGranted" xlink:href="btdr-20250630.xsd#btdr_StrikePriceShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="btdr_StrikePriceShareOptionsGranted" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PayablesForPurchaseOfNoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PayablesForPurchaseOfNoncurrentAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="ifrs-full_PayablesForPurchaseOfNoncurrentAssets" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentPrepaymentsAndOtherCurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentPrepaymentsAndOtherCurrentAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="ifrs-full_CurrentPrepaymentsAndOtherCurrentAssets" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LandRecognisedAsOfAcquisitionDate" xlink:href="btdr-20250630.xsd#btdr_LandRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="btdr_LandRecognisedAsOfAcquisitionDate" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RevenueOfAcquiree" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueOfAcquiree"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="ifrs-full_RevenueOfAcquiree" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLossOfAcquiree" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossOfAcquiree"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems" xlink:to="ifrs-full_ProfitLossOfAcquiree" order="13" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/RevenueandContractBalancesDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_RevenueAndContractBalancesAbstract" xlink:href="btdr-20250630.xsd#btdr_RevenueAndContractBalancesAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_DeferredRevenues" xlink:href="btdr-20250630.xsd#btdr_DeferredRevenues"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_RevenueAndContractBalancesAbstract" xlink:to="btdr_DeferredRevenues" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DeferredRevenueBalance" xlink:href="btdr-20250630.xsd#btdr_DeferredRevenueBalance"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_RevenueAndContractBalancesAbstract" xlink:to="btdr_DeferredRevenueBalance" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/SegmentInformationDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_NumberOfOperatingSegment" xlink:href="btdr-20250630.xsd#btdr_NumberOfOperatingSegment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:to="btdr_NumberOfOperatingSegment" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/CashCashEquivalentsandRestrictedCashDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_CashCashEquivalentsandRestrictedCashDetailsTable" xlink:href="btdr-20250630.xsd#btdr_CashCashEquivalentsandRestrictedCashDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="btdr_CashCashEquivalentsandRestrictedCashDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_CashCashEquivalentsandRestrictedCashDetailsTable" xlink:to="ifrs-full_RangeAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_CashCashEquivalentsandRestrictedCashDetailsTable" xlink:to="ifrs-full_BorrowingsByNameAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_BottomOfRangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_TopOfRangeMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LetterOfCreditsMember" xlink:href="btdr-20250630.xsd#btdr_LetterOfCreditsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_LetterOfCreditsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ShortTermDepositsMaturityDate" xlink:href="btdr-20250630.xsd#btdr_ShortTermDepositsMaturityDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="btdr_ShortTermDepositsMaturityDate" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_InterestRateOnShorttermDeposits" xlink:href="btdr-20250630.xsd#btdr_InterestRateOnShorttermDeposits"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="btdr_InterestRateOnShorttermDeposits" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherFinancialAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="ifrs-full_OtherFinancialAssets" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_StandbyLettersOfCreditsUsedByBeneficiaries" xlink:href="btdr-20250630.xsd#btdr_StandbyLettersOfCreditsUsedByBeneficiaries"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="btdr_StandbyLettersOfCreditsUsedByBeneficiaries" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_CashDepositedInEscrowAccount" xlink:href="btdr-20250630.xsd#btdr_CashDepositedInEscrowAccount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="btdr_CashDepositedInEscrowAccount" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PeriodOfEscrow" xlink:href="btdr-20250630.xsd#btdr_PeriodOfEscrow"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="btdr_PeriodOfEscrow" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/PrepaymentsandOtherAssetsDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_DisclosureOfPrepaymentsAndOtherAssetsLineItems" xlink:href="btdr-20250630.xsd#btdr_DisclosureOfPrepaymentsAndOtherAssetsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_PrepaymentsandOtherAssetsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_PrepaymentsandOtherAssetsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="btdr_DisclosureOfPrepaymentsAndOtherAssetsLineItems" xlink:to="btdr_PrepaymentsandOtherAssetsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_PrepaymentsandOtherAssetsDetailsTable" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_GuaranteeAgreementMember" xlink:href="btdr-20250630.xsd#btdr_GuaranteeAgreementMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_GuaranteeAgreementMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_EstimatedFinancialEffectOfContingentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EstimatedFinancialEffectOfContingentLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_DisclosureOfPrepaymentsAndOtherAssetsLineItems" xlink:to="ifrs-full_EstimatedFinancialEffectOfContingentLiabilities" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AllowanceForExpectedCreditLossesOrImpairmentForPrepaymentsAndOtherAssets" xlink:href="btdr-20250630.xsd#btdr_AllowanceForExpectedCreditLossesOrImpairmentForPrepaymentsAndOtherAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_DisclosureOfPrepaymentsAndOtherAssetsLineItems" xlink:to="btdr_AllowanceForExpectedCreditLossesOrImpairmentForPrepaymentsAndOtherAssets" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/InventoriesDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfInventoriesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfInventoriesAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfInventoriesAbstract" xlink:to="ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersFromToInvestmentPropertyPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersFromToInvestmentPropertyPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfInventoriesAbstract" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersFromToInvestmentPropertyPropertyPlantAndEquipment" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WritedownsReversalsOfInventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WritedownsReversalsOfInventories"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfInventoriesAbstract" xlink:to="ifrs-full_WritedownsReversalsOfInventories" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/MiningRigsDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="btdr_MiningRigsAbstract" xlink:href="btdr-20250630.xsd#btdr_MiningRigsAbstract"/>
    <loc xlink:type="locator" xlink:label="btdr_AdditionToMiningRigs" xlink:href="btdr-20250630.xsd#btdr_AdditionToMiningRigs"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="btdr_MiningRigsAbstract" xlink:to="btdr_AdditionToMiningRigs" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/PropertyPlantandEquipmentDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_PropertyPlantandEquipmentDetailsTable" xlink:href="btdr-20250630.xsd#btdr_PropertyPlantandEquipmentDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="btdr_PropertyPlantandEquipmentDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_PropertyPlantandEquipmentDetailsTable" xlink:to="ifrs-full_CategoriesOfRelatedPartiesAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_PropertyPlantandEquipmentDetailsTable" xlink:to="ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" xlink:to="ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" xlink:to="ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RelatedPartiesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RelatedPartiesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="ifrs-full_RelatedPartiesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LeaseLiabilitiesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseLiabilitiesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain" xlink:to="ifrs-full_LeaseLiabilitiesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestExpenseOnBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="ifrs-full_InterestExpenseOnBorrowings" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnLeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="ifrs-full_InterestExpenseOnLeaseLiabilities" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsInterestRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsInterestRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="ifrs-full_BorrowingsInterestRate" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="ifrs-full_ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/InvestmentPropertiesDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInvestmentPropertyLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_InvestmentPropertiesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_InvestmentPropertiesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="btdr_InvestmentPropertiesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_InvestmentPropertiesDetailsTable" xlink:to="ifrs-full_LevelsOfFairValueHierarchyAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:to="ifrs-full_LevelsOfFairValueHierarchyDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LevelsOfFairValueHierarchyDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:to="ifrs-full_LevelsOfFairValueHierarchyDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_InvestmentPropertiesDetailsTable" xlink:to="ifrs-full_RangeAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_InvestmentPropertiesDetailsTable" xlink:to="ifrs-full_ClassesOfAssetsAxis" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_BottomOfRangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_TopOfRangeMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InvestmentPropertyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentPropertyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfAssetsDomain" xlink:to="ifrs-full_InvestmentPropertyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Level3OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:to="ifrs-full_Level3OfFairValueHierarchyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_OperatingLeaseTerm" xlink:href="btdr-20250630.xsd#btdr_OperatingLeaseTerm"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="btdr_OperatingLeaseTerm" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentProperty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="ifrs-full_InvestmentProperty" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfInvestmentPropertyLineItems" xlink:to="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/LeasesDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_LeasesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_LeasesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:to="btdr_LeasesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_LeasesDetailsTable" xlink:to="ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:to="ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:to="ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_LeasesDetailsTable" xlink:to="ifrs-full_RangeAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_BottomOfRangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_TopOfRangeMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LandMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LandMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain" xlink:to="ifrs-full_LandMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_LesseeLeaseTermOfContract" xlink:href="btdr-20250630.xsd#btdr_LesseeLeaseTermOfContract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:to="btdr_LesseeLeaseTermOfContract" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AdditionsToRightOfUseAssetsAndInvestmentPropertiesOfLeaseholdLand" xlink:href="btdr-20250630.xsd#btdr_AdditionsToRightOfUseAssetsAndInvestmentPropertiesOfLeaseholdLand"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:to="btdr_AdditionsToRightOfUseAssetsAndInvestmentPropertiesOfLeaseholdLand" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:to="ifrs-full_LeaseLiabilities" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AdditionsToInvestmentPropertiesOfLeaseholdLand" xlink:href="btdr-20250630.xsd#btdr_AdditionsToInvestmentPropertiesOfLeaseholdLand"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:to="btdr_AdditionsToInvestmentPropertiesOfLeaseholdLand" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashOutflowForLeases" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashOutflowForLeases"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:to="ifrs-full_CashOutflowForLeases" order="4" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/BorrowingsDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_BorrowingsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_BorrowingsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="btdr_BorrowingsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_BorrowingsDetailsTable" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_BorrowingsDetailsTable" xlink:to="ifrs-full_BorrowingsByNameAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_BorrowingsDetailsTable" xlink:to="ifrs-full_ClassesOfOrdinarySharesAxis" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ClassAOrdinarySharesMember" xlink:href="btdr-20250630.xsd#btdr_ClassAOrdinarySharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="btdr_ClassAOrdinarySharesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ShorttermBorrowingsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermBorrowingsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="ifrs-full_ShorttermBorrowingsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PromissoryNoteMember" xlink:href="btdr-20250630.xsd#btdr_PromissoryNoteMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_PromissoryNoteMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_August2024ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_August2024ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_August2024ConvertibleSeniorNotesMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_November2024ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_November2024ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_November2024ConvertibleSeniorNotesMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_June2025ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_June2025ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_June2025ConvertibleSeniorNotesMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ScenarioForecastMember" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ScenarioForecastMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:to="srt_ScenarioForecastMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestExpenseOnBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_InterestExpenseOnBorrowings" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsInterestRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsInterestRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_BorrowingsInterestRate" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsMaturity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsMaturity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_BorrowingsMaturity" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DebtToEquityConversionPrice" xlink:href="btdr-20250630.xsd#btdr_DebtToEquityConversionPrice"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="btdr_DebtToEquityConversionPrice" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_GainLossRecognizedFromModificationOfConvertibleDebt" xlink:href="btdr-20250630.xsd#btdr_GainLossRecognizedFromModificationOfConvertibleDebt"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="btdr_GainLossRecognizedFromModificationOfConvertibleDebt" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NotionalAmount" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NotionalAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_NotionalAmount" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_UnamortizedDiscountOnBorrowings" xlink:href="btdr-20250630.xsd#btdr_UnamortizedDiscountOnBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="btdr_UnamortizedDiscountOnBorrowings" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PortionOfConsiderationPaidReceivedConsistingOfCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PortionOfConsiderationPaidReceivedConsistingOfCashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_PortionOfConsiderationPaidReceivedConsistingOfCashAndCashEquivalents" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainLossArisingFromDifferenceBetweenCarryingAmountOfFinancialLiabilityExtinguishedAndConsiderationPaid" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainLossArisingFromDifferenceBetweenCarryingAmountOfFinancialLiabilityExtinguishedAndConsiderationPaid"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_GainLossArisingFromDifferenceBetweenCarryingAmountOfFinancialLiabilityExtinguishedAndConsiderationPaid" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_UnamortizedDebtDiscount" xlink:href="btdr-20250630.xsd#btdr_UnamortizedDebtDiscount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="btdr_UnamortizedDebtDiscount" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PercentageOfDebtInstrumentRepurchasePricePrincipalAmountRepurchased" xlink:href="btdr-20250630.xsd#btdr_PercentageOfDebtInstrumentRepurchasePricePrincipalAmountRepurchased"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="btdr_PercentageOfDebtInstrumentRepurchasePricePrincipalAmountRepurchased" order="14" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/DerivativeLiabilitiesDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_DerivativeLiabilitiesDetailsTable" xlink:href="btdr-20250630.xsd#btdr_DerivativeLiabilitiesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="btdr_DerivativeLiabilitiesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_DerivativeLiabilitiesDetailsTable" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfAntidilutiveInstrumentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_DerivativeLiabilitiesDetailsTable" xlink:to="ifrs-full_TypesOfAntidilutiveInstrumentsAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfAntidilutiveInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfAntidilutiveInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:to="ifrs-full_TypesOfAntidilutiveInstrumentsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfAntidilutiveInstrumentsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfAntidilutiveInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:to="ifrs-full_TypesOfAntidilutiveInstrumentsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_DerivativeLiabilitiesDetailsTable" xlink:to="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationAxis" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationAxis" xlink:to="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationAxis" xlink:to="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_DerivativeLiabilitiesDetailsTable" xlink:to="ifrs-full_RangeAxis" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_DerivativeLiabilitiesDetailsTable" xlink:to="ifrs-full_ClassesOfOrdinarySharesAxis" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IssuanceOfAugust2024ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_IssuanceOfAugust2024ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_IssuanceOfAugust2024ConvertibleSeniorNotesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IssuanceOfNovember2024ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_IssuanceOfNovember2024ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_IssuanceOfNovember2024ConvertibleSeniorNotesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_IssuanceOfJune2025ConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_IssuanceOfJune2025ConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="btdr_IssuanceOfJune2025ConvertibleSeniorNotesMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ClassAOrdinarySharesMember" xlink:href="btdr-20250630.xsd#btdr_ClassAOrdinarySharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="btdr_ClassAOrdinarySharesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_TopOfRangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_BottomOfRangeMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TetherInternationalLimitedMember" xlink:href="btdr-20250630.xsd#btdr_TetherInternationalLimitedMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain" xlink:to="btdr_TetherInternationalLimitedMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WarrantsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WarrantsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TypesOfAntidilutiveInstrumentsDomain" xlink:to="ifrs-full_WarrantsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfSharesAuthorised" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesAuthorised"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="ifrs-full_NumberOfSharesAuthorised" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ClassOfWarrantsIssued" xlink:href="btdr-20250630.xsd#btdr_ClassOfWarrantsIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="btdr_ClassOfWarrantsIssued" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_WarrantsExercisePrice" xlink:href="btdr-20250630.xsd#btdr_WarrantsExercisePrice"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="btdr_WarrantsExercisePrice" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromIssueOfOrdinaryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssueOfOrdinaryShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="ifrs-full_ProceedsFromIssueOfOrdinaryShares" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesRecognisedInProfitOrLossExcludingExchangeDifferencesFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossExcludingExchangeDifferencesFairValueMeasurementLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="ifrs-full_GainsLossesRecognisedInProfitOrLossExcludingExchangeDifferencesFairValueMeasurementLiabilities" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AdjustedWarrantsExercisePrice" xlink:href="btdr-20250630.xsd#btdr_AdjustedWarrantsExercisePrice"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="btdr_AdjustedWarrantsExercisePrice" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="ifrs-full_DerivativeFinancialLiabilities" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DerivativeLiabilitiesAssociatedWithConversionFeaturesAmount" xlink:href="btdr-20250630.xsd#btdr_DerivativeLiabilitiesAssociatedWithConversionFeaturesAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="btdr_DerivativeLiabilitiesAssociatedWithConversionFeaturesAmount" order="7" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/ShareBasedPaymentsDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_ShareBasedPaymentsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_ShareBasedPaymentsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="btdr_ShareBasedPaymentsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_ShareBasedPaymentsDetailsTable" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_ShareBasedPaymentsDetailsTable" xlink:to="ifrs-full_RangeAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_ShareBasedPaymentsDetailsTable" xlink:to="ifrs-full_ClassesOfOrdinarySharesAxis" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ClassAOrdinarySharesMember" xlink:href="btdr-20250630.xsd#btdr_ClassAOrdinarySharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="btdr_ClassAOrdinarySharesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TwoThousandAndTwentyThreeShareIncentivePlanMember" xlink:href="btdr-20250630.xsd#btdr_TwoThousandAndTwentyThreeShareIncentivePlanMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:to="btdr_TwoThousandAndTwentyThreeShareIncentivePlanMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TwoThousandAndTwentyThreePerformancePlanMember" xlink:href="btdr-20250630.xsd#btdr_TwoThousandAndTwentyThreePerformancePlanMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:to="btdr_TwoThousandAndTwentyThreePerformancePlanMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_BottomOfRangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_TopOfRangeMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfSharesIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_NumberOfSharesIssued" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ShareBasedCompensationArrangementByShareBasedPaymentNumberOfSharesForEachAwardGrantsAnOption" xlink:href="btdr-20250630.xsd#btdr_ShareBasedCompensationArrangementByShareBasedPaymentNumberOfSharesForEachAwardGrantsAnOption"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="btdr_ShareBasedCompensationArrangementByShareBasedPaymentNumberOfSharesForEachAwardGrantsAnOption" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPeriod" xlink:href="btdr-20250630.xsd#btdr_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPeriod"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="btdr_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPeriod" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromExerciseOfOptions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromExerciseOfOptions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_ProceedsFromExerciseOfOptions" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpectedDividendShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpectedDividendShareOptionsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_ExpectedDividendShareOptionsGranted" order="8" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/EquityDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_EquityDetailsTable" xlink:href="btdr-20250630.xsd#btdr_EquityDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_EquityDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfShareCapitalAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfShareCapitalAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_EquityDetailsTable" xlink:to="ifrs-full_ClassesOfShareCapitalAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfShareCapitalDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfShareCapitalDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfShareCapitalAxis" xlink:to="ifrs-full_ClassesOfShareCapitalDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfShareCapitalDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfShareCapitalDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfShareCapitalAxis" xlink:to="ifrs-full_ClassesOfShareCapitalDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfAntidilutiveInstrumentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_EquityDetailsTable" xlink:to="ifrs-full_TypesOfAntidilutiveInstrumentsAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfAntidilutiveInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfAntidilutiveInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:to="ifrs-full_TypesOfAntidilutiveInstrumentsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfAntidilutiveInstrumentsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfAntidilutiveInstrumentsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:to="ifrs-full_TypesOfAntidilutiveInstrumentsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_EquityDetailsTable" xlink:to="ifrs-full_CategoriesOfRelatedPartiesAxis" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_EquityDetailsTable" xlink:to="ifrs-full_BorrowingsByNameAxis" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_EquityDetailsTable" xlink:to="ifrs-full_ClassesOfOrdinarySharesAxis" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_EquityDetailsTable" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_EquityDetailsTable" xlink:to="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationAxis" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationAxis" xlink:to="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationAxis" xlink:to="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ClassAOrdinarySharesMember" xlink:href="btdr-20250630.xsd#btdr_ClassAOrdinarySharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="btdr_ClassAOrdinarySharesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_PromissoryNoteMember" xlink:href="btdr-20250630.xsd#btdr_PromissoryNoteMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_PromissoryNoteMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_JuneConvertibleSeniorNotesMember" xlink:href="btdr-20250630.xsd#btdr_JuneConvertibleSeniorNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_JuneConvertibleSeniorNotesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_BRileyPrincipalCapitalIILLCMember" xlink:href="btdr-20250630.xsd#btdr_BRileyPrincipalCapitalIILLCMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain" xlink:to="btdr_BRileyPrincipalCapitalIILLCMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_SalesAgentsMember" xlink:href="btdr-20250630.xsd#btdr_SalesAgentsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain" xlink:to="btdr_SalesAgentsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_RenolInvestASAndBryhniComASMember" xlink:href="btdr-20250630.xsd#btdr_RenolInvestASAndBryhniComASMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain" xlink:to="btdr_RenolInvestASAndBryhniComASMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TetherInternationalLimitedMember" xlink:href="btdr-20250630.xsd#btdr_TetherInternationalLimitedMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationDomain" xlink:to="btdr_TetherInternationalLimitedMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_SeriesAPreferredSharesMember" xlink:href="btdr-20250630.xsd#btdr_SeriesAPreferredSharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfShareCapitalDomain" xlink:to="btdr_SeriesAPreferredSharesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MajorOrdinaryShareTransactionsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MajorOrdinaryShareTransactionsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:to="ifrs-full_MajorOrdinaryShareTransactionsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TwoThousandTwentyFourShareRepurchaseProgramMember" xlink:href="btdr-20250630.xsd#btdr_TwoThousandTwentyFourShareRepurchaseProgramMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="btdr_TwoThousandTwentyFourShareRepurchaseProgramMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ConvertibleInstrumentsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ConvertibleInstrumentsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TypesOfAntidilutiveInstrumentsDomain" xlink:to="ifrs-full_ConvertibleInstrumentsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_NumberOfSharesAuthorizedValue" xlink:href="btdr-20250630.xsd#btdr_NumberOfSharesAuthorizedValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_NumberOfSharesAuthorizedValue" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ParValuePerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ParValuePerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_ParValuePerShare" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromIssueOfOrdinaryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssueOfOrdinaryShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_ProceedsFromIssueOfOrdinaryShares" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfSharesIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_NumberOfSharesIssued" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_NetProceedsFromIssuingShares" xlink:href="btdr-20250630.xsd#btdr_NetProceedsFromIssuingShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_NetProceedsFromIssuingShares" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IssueOfEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssueOfEquity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_IssueOfEquity" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfSharesAuthorised" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesAuthorised"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_NumberOfSharesAuthorised" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ResidualNetTransactionAmount" xlink:href="btdr-20250630.xsd#btdr_ResidualNetTransactionAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_ResidualNetTransactionAmount" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_WarrantsExercisePrice" xlink:href="btdr-20250630.xsd#btdr_WarrantsExercisePrice"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_WarrantsExercisePrice" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_SharesOfConverted" xlink:href="btdr-20250630.xsd#btdr_SharesOfConverted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_SharesOfConverted" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_NumberOfShareRepurchaseProgramsAuthorized" xlink:href="btdr-20250630.xsd#btdr_NumberOfShareRepurchaseProgramsAuthorized"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_NumberOfShareRepurchaseProgramsAuthorized" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_StockRepurchaseProgramAuthorizedAmount1" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_StockRepurchaseProgramAuthorizedAmount1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="srt_StockRepurchaseProgramAuthorizedAmount1" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_StockRepurchaseProgramNumberOfSharesRepurchased" xlink:href="btdr-20250630.xsd#btdr_StockRepurchaseProgramNumberOfSharesRepurchased"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_StockRepurchaseProgramNumberOfSharesRepurchased" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ProceedsUsedToRepurchaseOrdinaryShareDuringPeriodValue" xlink:href="btdr-20250630.xsd#btdr_ProceedsUsedToRepurchaseOrdinaryShareDuringPeriodValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_ProceedsUsedToRepurchaseOrdinaryShareDuringPeriodValue" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_TreasurySharesPurchased" xlink:href="btdr-20250630.xsd#btdr_TreasurySharesPurchased"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_TreasurySharesPurchased" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="srt_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_RepurchaseOrdinaryShareDuringPeriodValue" xlink:href="btdr-20250630.xsd#btdr_RepurchaseOrdinaryShareDuringPeriodValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_RepurchaseOrdinaryShareDuringPeriodValue" order="17" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_StockRepurchaseProgramOrdinaryShareAuthorized" xlink:href="btdr-20250630.xsd#btdr_StockRepurchaseProgramOrdinaryShareAuthorized"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_StockRepurchaseProgramOrdinaryShareAuthorized" order="18" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_NumberOfSharesPurchasedInZeroStrikeCallOptionTransaction" xlink:href="btdr-20250630.xsd#btdr_NumberOfSharesPurchasedInZeroStrikeCallOptionTransaction"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_NumberOfSharesPurchasedInZeroStrikeCallOptionTransaction" order="19" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ProceedsFromOfferingUsedToEnterIntoZeroStrikeCallOptionTransaction" xlink:href="btdr-20250630.xsd#btdr_ProceedsFromOfferingUsedToEnterIntoZeroStrikeCallOptionTransaction"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="btdr_ProceedsFromOfferingUsedToEnterIntoZeroStrikeCallOptionTransaction" order="20" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/TaxationDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AverageEffectiveTaxRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AverageEffectiveTaxRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:to="ifrs-full_AverageEffectiveTaxRate" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/RelatedPartyTransactionsDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_RelatedPartyTransactionsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_RelatedPartyTransactionsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="btdr_RelatedPartyTransactionsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_RelatedPartyTransactionsDetailsTable" xlink:to="ifrs-full_CategoriesOfRelatedPartiesAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_MatrixportGroupMember" xlink:href="btdr-20250630.xsd#btdr_MatrixportGroupMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="btdr_MatrixportGroupMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CapitalCommitments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CapitalCommitments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_CapitalCommitments" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsInterestRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsInterestRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_BorrowingsInterestRate" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/EarningsLossPerShareDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_EarningsPerShareLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_EarningsLossPerShareDetailsTable" xlink:href="btdr-20250630.xsd#btdr_EarningsLossPerShareDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_EarningsPerShareLineItems" xlink:to="btdr_EarningsLossPerShareDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_EarningsLossPerShareDetailsTable" xlink:to="ifrs-full_ClassesOfOrdinarySharesAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ClassAOrdinarySharesMember" xlink:href="btdr-20250630.xsd#btdr_ClassAOrdinarySharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="btdr_ClassAOrdinarySharesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ClassVOrdinarySharesMember" xlink:href="btdr-20250630.xsd#btdr_ClassVOrdinarySharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="btdr_ClassVOrdinarySharesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_NumberOfVotesGrantedPerShare" xlink:href="btdr-20250630.xsd#btdr_NumberOfVotesGrantedPerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_EarningsPerShareLineItems" xlink:to="btdr_NumberOfVotesGrantedPerShare" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://bitdeertechnologiesgroup.com/role/SubsequentEventsDetails" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems"/>
    <loc xlink:type="locator" xlink:label="btdr_SubsequentEventsDetailsTable" xlink:href="btdr-20250630.xsd#btdr_SubsequentEventsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="btdr_SubsequentEventsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_SubsequentEventsDetailsTable" xlink:to="ifrs-full_BusinessCombinationsAxis" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BusinessCombinationsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_SubsequentEventsDetailsTable" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_SubsequentEventsDetailsTable" xlink:to="ifrs-full_CategoriesOfRelatedPartiesAxis" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_SubsequentEventsDetailsTable" xlink:to="ifrs-full_RangeAxis" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_SubsequentEventsDetailsTable" xlink:to="ifrs-full_BorrowingsByNameAxis" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_SubsequentEventsDetailsTable" xlink:to="ifrs-full_ClassesOfOrdinarySharesAxis" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOrdinarySharesDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="ifrs-full_ClassesOfOrdinarySharesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="btdr_SubsequentEventsDetailsTable" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ClassAOrdinarySharesMember" xlink:href="btdr-20250630.xsd#btdr_ClassAOrdinarySharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="btdr_ClassAOrdinarySharesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OrdinarySharesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OrdinarySharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="ifrs-full_OrdinarySharesMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ShareIncentivePlan2023Member" xlink:href="btdr-20250630.xsd#btdr_ShareIncentivePlan2023Member"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:to="btdr_ShareIncentivePlan2023Member" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_BottomOfRangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_TopOfRangeMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_August2024ConvertibleNotesMember" xlink:href="btdr-20250630.xsd#btdr_August2024ConvertibleNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="btdr_August2024ConvertibleNotesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_AlbertaLimitedMember" xlink:href="btdr-20250630.xsd#btdr_AlbertaLimitedMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_BusinessCombinationsDomain" xlink:to="btdr_AlbertaLimitedMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_SubsequentEventsMember" xlink:href="btdr-20250630.xsd#btdr_SubsequentEventsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:to="btdr_SubsequentEventsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ForecastMember" xlink:href="btdr-20250630.xsd#btdr_ForecastMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:to="btdr_ForecastMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_MatrixportGroupMember" xlink:href="btdr-20250630.xsd#btdr_MatrixportGroupMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="btdr_MatrixportGroupMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PercentageOfVotingEquityInterestsAcquired"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="ifrs-full_PercentageOfVotingEquityInterestsAcquired" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_Capacity" xlink:href="btdr-20250630.xsd#btdr_Capacity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="btdr_Capacity" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_UndrawnBorrowingFacilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UndrawnBorrowingFacilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="ifrs-full_UndrawnBorrowingFacilities" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_StockRepurchaseProgramNumberOfSharesRepurchased" xlink:href="btdr-20250630.xsd#btdr_StockRepurchaseProgramNumberOfSharesRepurchased"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="btdr_StockRepurchaseProgramNumberOfSharesRepurchased" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfSharesIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="ifrs-full_NumberOfSharesIssued" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_DebtToEquityConversionPrice" xlink:href="btdr-20250630.xsd#btdr_DebtToEquityConversionPrice"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="btdr_DebtToEquityConversionPrice" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesForEachAward" xlink:href="btdr-20250630.xsd#btdr_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesForEachAward"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="btdr_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesForEachAward" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod" xlink:href="btdr-20250630.xsd#btdr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="btdr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ShareAwardExpirationPeriod" xlink:href="btdr-20250630.xsd#btdr_ShareAwardExpirationPeriod"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="btdr_ShareAwardExpirationPeriod" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsInterestRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsInterestRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="ifrs-full_BorrowingsInterestRate" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Borrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Borrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="ifrs-full_Borrowings" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_ConversionRate" xlink:href="btdr-20250630.xsd#btdr_ConversionRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="btdr_ConversionRate" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_WithdrewAmount" xlink:href="btdr-20250630.xsd#btdr_WithdrewAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="btdr_WithdrewAmount" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_UnsecuredBearsInterestRate" xlink:href="btdr-20250630.xsd#btdr_UnsecuredBearsInterestRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="btdr_UnsecuredBearsInterestRate" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="btdr_NewlyIssuedShares" xlink:href="btdr-20250630.xsd#btdr_NewlyIssuedShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="btdr_NewlyIssuedShares" order="17" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromIssueOfOrdinaryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssueOfOrdinaryShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="ifrs-full_ProceedsFromIssueOfOrdinaryShares" order="18" xbrldt:closed="true"/>
  </definitionLink>
</linkbase>
