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  <xs:element id="bah_ContractorConcentrationTypeRiskMember" abstract="true" name="ContractorConcentrationTypeRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="bah_IntelligenceClientsMember" abstract="true" name="IntelligenceClientsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bah_CivilClientsMember" abstract="true" name="CivilClientsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="bah_ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassLineItems" abstract="true" name="ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
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  <xs:element id="bah_PARGovernmentSystemsCorporationPGSCMember" abstract="true" name="PARGovernmentSystemsCorporationPGSCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bah_MENABusinessMember" abstract="true" name="MENABusinessMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bah_CustomerContractsAndRelatedCustomerRelationshipsMember" abstract="true" name="CustomerContractsAndRelatedCustomerRelationshipsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bah_TermLoanAMember" abstract="true" name="TermLoanAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="bah_SeniorNotesDue2029Member" abstract="true" name="SeniorNotesDue2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="bah_SecuredCreditFacilityMember" abstract="true" name="SecuredCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bah_RevolvingCommitmentsMember" abstract="true" name="RevolvingCommitmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bah_AfterTwoYearButBeforeFiveYearAnniversaryMember" abstract="true" name="AfterTwoYearButBeforeFiveYearAnniversaryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bah_OvernightFederalFundsRateMember" abstract="true" name="OvernightFederalFundsRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bah_ThreeMonthTermSecuredOvernightFinancingRateSOFRMember" abstract="true" name="ThreeMonthTermSecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bah_DebtInstrumentBasisSpreadOnVariableRateAdjustment" abstract="false" name="DebtInstrumentBasisSpreadOnVariableRateAdjustment" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="bah_DebtInstrumentBasisSpreadOnVariableRateFloor" abstract="false" name="DebtInstrumentBasisSpreadOnVariableRateFloor" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="bah_PrincipalBeingRedeemedLessAccruedInterestMember" abstract="true" name="PrincipalBeingRedeemedLessAccruedInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bah_PrincipalAmountBeingRedeemedMember" abstract="true" name="PrincipalAmountBeingRedeemedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bah_LongTermDebtInterestAbstract" abstract="true" name="LongTermDebtInterestAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
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  <xs:element id="bah_LongTermDebtIncludingInterest" abstract="false" name="LongTermDebtIncludingInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bah_LongTermDebtIncludingInterestMaturityYearTwo" abstract="false" name="LongTermDebtIncludingInterestMaturityYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bah_LongTermDebtIncludingInterestMaturityYearFour" abstract="false" name="LongTermDebtIncludingInterestMaturityYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bah_LongTermDebtIncludingInterestMaturityAfterYearFive" abstract="false" name="LongTermDebtIncludingInterestMaturityAfterYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_TermLoanBMember" abstract="true" name="TermLoanBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bah_InterestIncomeExpenseDebtInterestSwap" abstract="false" name="InterestIncomeExpenseDebtInterestSwap" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_InterestIncomeExpenseOther" abstract="false" name="InterestIncomeExpenseOther" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationCostAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationCostAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_DeferredTaxAssetsNetOperatingLossCapitalLossCarryforwards" abstract="false" name="DeferredTaxAssetsNetOperatingLossCapitalLossCarryforwards" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_DeferredTaxAssetsResearchAndDevelopmentExpendituresAndIndirectEffects" abstract="false" name="DeferredTaxAssetsResearchAndDevelopmentExpendituresAndIndirectEffects" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_DeferredTaxAssetsTaxCreditCarryforwardsState" abstract="false" name="DeferredTaxAssetsTaxCreditCarryforwardsState" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_DeferredTaxAssetsOperatingLeaseLiability" abstract="false" name="DeferredTaxAssetsOperatingLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_DeferredTaxLiabilitiesCurrentAccountsReceivableUnbilled" abstract="false" name="DeferredTaxLiabilitiesCurrentAccountsReceivableUnbilled" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_DeferredTaxLiabilitiesOperatingLeaseRightofUseAsset" abstract="false" name="DeferredTaxLiabilitiesOperatingLeaseRightofUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_LiabilityForUncertaintyInIncomeTaxes" abstract="false" name="LiabilityForUncertaintyInIncomeTaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_UnrecognizedTaxBenefitsThatImpactDeferredTaxLiabilities" abstract="false" name="UnrecognizedTaxBenefitsThatImpactDeferredTaxLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_OfficerMedicalPlanMember" abstract="true" name="OfficerMedicalPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bah_DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYearPre65" abstract="false" name="DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYearPre65" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="bah_DefinedBenefitPlanUltimateHealthCareCostTrendRatePre65" abstract="false" name="DefinedBenefitPlanUltimateHealthCareCostTrendRatePre65" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
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  <xs:element id="bah_DefinedBenefitPlanExpectedFutureBenefitPayment" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPayment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bah_StockRepurchaseProgramIncreaseInAuthorizedAmount" abstract="false" name="StockRepurchaseProgramIncreaseInAuthorizedAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bah_AmendedAndRestatedEquityIncentivePlanMember" abstract="true" name="AmendedAndRestatedEquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bah_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedUponConversion" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedUponConversion" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
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  <xs:element id="bah_IncreaseToRevenueToReflectBestEstimateOfFinalCostRatesMember" abstract="true" name="IncreaseToRevenueToReflectBestEstimateOfFinalCostRatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bah_GuarantorObligationsFacility" abstract="false" name="GuarantorObligationsFacility" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bah_GuarantorObligationsAvailableAmount" abstract="false" name="GuarantorObligationsAvailableAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
