<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019cb57f-0daf-7b83-86a0-b341ea6bd919,g:92e97632-6122-4fd6-a422-478b3343ff6f-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:bbai="http://bigbear.ai/20260331" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://bigbear.ai/20260331">
  <xs:import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="bbai-20260331_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="bbai-20260331_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="bbai-20260331_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="bbai-20260331_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="Cover" roleURI="http://bigbear.ai/role/Cover">
        <link:definition>0000001 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDBALANCESHEETS" roleURI="http://bigbear.ai/role/CONDENSEDCONSOLIDATEDBALANCESHEETS">
        <link:definition>9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" roleURI="http://bigbear.ai/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical">
        <link:definition>9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSS" roleURI="http://bigbear.ai/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSS">
        <link:definition>9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYDEFICIT" roleURI="http://bigbear.ai/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYDEFICIT">
        <link:definition>9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS&#8217; EQUITY (DEFICIT)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" roleURI="http://bigbear.ai/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS">
        <link:definition>9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DescriptionoftheBusiness" roleURI="http://bigbear.ai/role/DescriptionoftheBusiness">
        <link:definition>9952156 - Disclosure - Description of the Business</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPolicies" roleURI="http://bigbear.ai/role/SummaryofSignificantAccountingPolicies">
        <link:definition>9952157 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringCharges" roleURI="http://bigbear.ai/role/RestructuringCharges">
        <link:definition>9952158 - Disclosure - Restructuring Charges</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinations" roleURI="http://bigbear.ai/role/BusinessCombinations">
        <link:definition>9952159 - Disclosure - Business Combinations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialInstruments" roleURI="http://bigbear.ai/role/FairValueofFinancialInstruments">
        <link:definition>9952160 - Disclosure - Fair Value of Financial Instruments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsinDebtSecurities" roleURI="http://bigbear.ai/role/InvestmentsinDebtSecurities">
        <link:definition>9952161 - Disclosure - Investments in Debt Securities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Goodwill" roleURI="http://bigbear.ai/role/Goodwill">
        <link:definition>9952162 - Disclosure - Goodwill</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsnet" roleURI="http://bigbear.ai/role/IntangibleAssetsnet">
        <link:definition>9952163 - Disclosure - Intangible Assets, net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PrepaidExpensesandOtherCurrentAssets" roleURI="http://bigbear.ai/role/PrepaidExpensesandOtherCurrentAssets">
        <link:definition>9952164 - Disclosure - Prepaid Expenses and Other Current Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedLiabilities" roleURI="http://bigbear.ai/role/AccruedLiabilities">
        <link:definition>9952165 - Disclosure - Accrued Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Debt" roleURI="http://bigbear.ai/role/Debt">
        <link:definition>9952166 - Disclosure - Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Leases" roleURI="http://bigbear.ai/role/Leases">
        <link:definition>9952167 - Disclosure - Leases</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://bigbear.ai/role/IncomeTaxes">
        <link:definition>9952168 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingencies" roleURI="http://bigbear.ai/role/CommitmentsandContingencies">
        <link:definition>9952169 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquity" roleURI="http://bigbear.ai/role/StockholdersEquity">
        <link:definition>9952170 - Disclosure - Stockholders&#8217; Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AttheMarketOffering" roleURI="http://bigbear.ai/role/AttheMarketOffering">
        <link:definition>9952171 - Disclosure - At-the-Market Offering</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Derivatives" roleURI="http://bigbear.ai/role/Derivatives">
        <link:definition>9952172 - Disclosure - Derivatives</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityBasedCompensation" roleURI="http://bigbear.ai/role/EquityBasedCompensation">
        <link:definition>9952173 - Disclosure - Equity-Based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossPerShare" roleURI="http://bigbear.ai/role/NetLossPerShare">
        <link:definition>9952174 - Disclosure - Net Loss Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Revenues" roleURI="http://bigbear.ai/role/Revenues">
        <link:definition>9952175 - Disclosure - Revenues</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Segments" roleURI="http://bigbear.ai/role/Segments">
        <link:definition>9952176 - Disclosure - Segments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPoliciesPolicies" roleURI="http://bigbear.ai/role/SummaryofSignificantAccountingPoliciesPolicies">
        <link:definition>9955511 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringChargesTables" roleURI="http://bigbear.ai/role/RestructuringChargesTables">
        <link:definition>9955512 - Disclosure - Restructuring Charges (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsTables" roleURI="http://bigbear.ai/role/BusinessCombinationsTables">
        <link:definition>9955513 - Disclosure - Business Combinations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialInstrumentsTables" roleURI="http://bigbear.ai/role/FairValueofFinancialInstrumentsTables">
        <link:definition>9955514 - Disclosure - Fair Value of Financial Instruments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsinDebtSecuritiesTables" roleURI="http://bigbear.ai/role/InvestmentsinDebtSecuritiesTables">
        <link:definition>9955515 - Disclosure - Investments in Debt Securities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillTables" roleURI="http://bigbear.ai/role/GoodwillTables">
        <link:definition>9955516 - Disclosure - Goodwill (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsnetTables" roleURI="http://bigbear.ai/role/IntangibleAssetsnetTables">
        <link:definition>9955517 - Disclosure - Intangible Assets, net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PrepaidExpensesandOtherCurrentAssetsTables" roleURI="http://bigbear.ai/role/PrepaidExpensesandOtherCurrentAssetsTables">
        <link:definition>9955518 - Disclosure - Prepaid Expenses and Other Current Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedLiabilitiesTables" roleURI="http://bigbear.ai/role/AccruedLiabilitiesTables">
        <link:definition>9955519 - Disclosure - Accrued Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtTables" roleURI="http://bigbear.ai/role/DebtTables">
        <link:definition>9955520 - Disclosure - Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesTables" roleURI="http://bigbear.ai/role/LeasesTables">
        <link:definition>9955521 - Disclosure - Leases (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://bigbear.ai/role/IncomeTaxesTables">
        <link:definition>9955522 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityTables" roleURI="http://bigbear.ai/role/StockholdersEquityTables">
        <link:definition>9955523 - Disclosure - Stockholders&#8217; Equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesTables" roleURI="http://bigbear.ai/role/DerivativesTables">
        <link:definition>9955524 - Disclosure - Derivatives (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityBasedCompensationTables" roleURI="http://bigbear.ai/role/EquityBasedCompensationTables">
        <link:definition>9955525 - Disclosure - Equity-Based Compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossPerShareTables" roleURI="http://bigbear.ai/role/NetLossPerShareTables">
        <link:definition>9955526 - Disclosure - Net Loss Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesTables" roleURI="http://bigbear.ai/role/RevenuesTables">
        <link:definition>9955527 - Disclosure - Revenues (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringChargesScheduleofRestructuringReservebyTypeofCostDetails" roleURI="http://bigbear.ai/role/RestructuringChargesScheduleofRestructuringReservebyTypeofCostDetails">
        <link:definition>9955528 - Disclosure - Restructuring Charges - Schedule of Restructuring Reserve by Type of Cost (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringChargesScheduleofRestructuringChargesDetails" roleURI="http://bigbear.ai/role/RestructuringChargesScheduleofRestructuringChargesDetails">
        <link:definition>9955529 - Disclosure - Restructuring Charges - Schedule of Restructuring Charges (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsNarrativeDetails" roleURI="http://bigbear.ai/role/BusinessCombinationsNarrativeDetails">
        <link:definition>9955530 - Disclosure - Business Combinations - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsScheduleofAssetsandLiabilitiesAssumedAskSageAcquisitionDetails" roleURI="http://bigbear.ai/role/BusinessCombinationsScheduleofAssetsandLiabilitiesAssumedAskSageAcquisitionDetails">
        <link:definition>9955531 - Disclosure - Business Combinations - Schedule of Assets and Liabilities Assumed Ask Sage Acquisition (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsScheduleofFiniteLivedIntangibleAssetsAcquiredasPartofBusinessCombinationDetails" roleURI="http://bigbear.ai/role/BusinessCombinationsScheduleofFiniteLivedIntangibleAssetsAcquiredasPartofBusinessCombinationDetails">
        <link:definition>9955532 - Disclosure - Business Combinations - Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsScheduleofBusinessCombinationAcquisitionRelatedCostsDetails" roleURI="http://bigbear.ai/role/BusinessCombinationsScheduleofBusinessCombinationAcquisitionRelatedCostsDetails">
        <link:definition>9955533 - Disclosure - Business Combinations - Schedule of Business Combination, Acquisition Related Costs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessCombinationsScheduleofProFormaInformationDetails" roleURI="http://bigbear.ai/role/BusinessCombinationsScheduleofProFormaInformationDetails">
        <link:definition>9955534 - Disclosure - Business Combinations - Schedule of Pro Forma Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialInstrumentsScheduleofFinancialLiabilitiesMeasuredatFairValueonRecurringBasisDetails" roleURI="http://bigbear.ai/role/FairValueofFinancialInstrumentsScheduleofFinancialLiabilitiesMeasuredatFairValueonRecurringBasisDetails">
        <link:definition>9955535 - Disclosure - Fair Value of Financial Instruments - Schedule of Financial Liabilities Measured at Fair Value on Recurring Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialInstrumentsScheduleofFairValueLiabilitiesMeasuredonRecurringBasisUnobservableInputReconciliationDetails" roleURI="http://bigbear.ai/role/FairValueofFinancialInstrumentsScheduleofFairValueLiabilitiesMeasuredonRecurringBasisUnobservableInputReconciliationDetails">
        <link:definition>9955536 - Disclosure - Fair Value of Financial Instruments - Schedule of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsinDebtSecuritiesScheduleofAvailableforSaleInvestmentsDetails" roleURI="http://bigbear.ai/role/InvestmentsinDebtSecuritiesScheduleofAvailableforSaleInvestmentsDetails">
        <link:definition>9955537 - Disclosure - Investments in Debt Securities - Schedule of Available for Sale Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsinDebtSecuritiesNarrativeDetails" roleURI="http://bigbear.ai/role/InvestmentsinDebtSecuritiesNarrativeDetails">
        <link:definition>9955538 - Disclosure - Investments in Debt Securities - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsinDebtSecuritiesScheduleofAmortizedCostFairValueandTotalWeightedAverageYieldofAvailableForSaleInvestmentSecuritiesDetails" roleURI="http://bigbear.ai/role/InvestmentsinDebtSecuritiesScheduleofAmortizedCostFairValueandTotalWeightedAverageYieldofAvailableForSaleInvestmentSecuritiesDetails">
        <link:definition>9955539 - Disclosure - Investments in Debt Securities - Schedule of Amortized Cost, Fair Value and Total Weighted-Average Yield of Available-For-Sale Investment Securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillNarrativeDetails" roleURI="http://bigbear.ai/role/GoodwillNarrativeDetails">
        <link:definition>9955540 - Disclosure - Goodwill - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillScheduleofGoodwillDetails" roleURI="http://bigbear.ai/role/GoodwillScheduleofGoodwillDetails">
        <link:definition>9955541 - Disclosure - Goodwill - Schedule of Goodwill (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsnetScheduleofFiniteLivedIntangibleAssetsDetails" roleURI="http://bigbear.ai/role/IntangibleAssetsnetScheduleofFiniteLivedIntangibleAssetsDetails">
        <link:definition>9955542 - Disclosure - Intangible Assets, net - Schedule of Finite-Lived Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsnetScheduleofFiniteLivedIntangibleAssetsAmortizationExpenseDetails" roleURI="http://bigbear.ai/role/IntangibleAssetsnetScheduleofFiniteLivedIntangibleAssetsAmortizationExpenseDetails">
        <link:definition>9955543 - Disclosure - Intangible Assets, net - Schedule of Finite-Lived Intangible Assets, Amortization Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsnetScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseDetails" roleURI="http://bigbear.ai/role/IntangibleAssetsnetScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseDetails">
        <link:definition>9955544 - Disclosure - Intangible Assets, net - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PrepaidExpensesandOtherCurrentAssetsDetails" roleURI="http://bigbear.ai/role/PrepaidExpensesandOtherCurrentAssetsDetails">
        <link:definition>9955545 - Disclosure - Prepaid Expenses and Other Current Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedLiabilitiesDetails" roleURI="http://bigbear.ai/role/AccruedLiabilitiesDetails">
        <link:definition>9955546 - Disclosure - Accrued Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtScheduleofDebtDetails" roleURI="http://bigbear.ai/role/DebtScheduleofDebtDetails">
        <link:definition>9955547 - Disclosure - Debt - Schedule of Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtConvertibleNotesNarrativeDetails" roleURI="http://bigbear.ai/role/DebtConvertibleNotesNarrativeDetails">
        <link:definition>9955548 - Disclosure - Debt - Convertible Notes - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtScheduleofConvertibleDebtDetails" roleURI="http://bigbear.ai/role/DebtScheduleofConvertibleDebtDetails">
        <link:definition>9955549 - Disclosure - Debt - Schedule of Convertible Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtScheduleOfInterestExpenseDetails" roleURI="http://bigbear.ai/role/DebtScheduleOfInterestExpenseDetails">
        <link:definition>9955550 - Disclosure - Debt - Schedule Of Interest Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesNarrativeDetails" roleURI="http://bigbear.ai/role/LeasesNarrativeDetails">
        <link:definition>9955551 - Disclosure - Leases - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesScheduleofSupplementalInformationRelatedtoLeasesDetails" roleURI="http://bigbear.ai/role/LeasesScheduleofSupplementalInformationRelatedtoLeasesDetails">
        <link:definition>9955552 - Disclosure - Leases - Schedule of Supplemental Information Related to Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesScheduleofLeaseCostDetails" roleURI="http://bigbear.ai/role/LeasesScheduleofLeaseCostDetails">
        <link:definition>9955553 - Disclosure - Leases - Schedule of Lease Cost (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesScheduleofSupplementalCashFlowandNonCashInformationRelatedtoLeasesDetails" roleURI="http://bigbear.ai/role/LeasesScheduleofSupplementalCashFlowandNonCashInformationRelatedtoLeasesDetails">
        <link:definition>9955554 - Disclosure - Leases - Schedule of Supplemental Cash Flow and Non-Cash Information Related to Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesScheduleofLesseeOperatingLeaseLiabilityMaturityDetails" roleURI="http://bigbear.ai/role/LeasesScheduleofLesseeOperatingLeaseLiabilityMaturityDetails">
        <link:definition>9955555 - Disclosure - Leases - Schedule of Lessee, Operating Lease, Liability, Maturity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesScheduleofLesseeOperatingLeaseLiabilityMaturityDetails_1" roleURI="http://bigbear.ai/role/LeasesScheduleofLesseeOperatingLeaseLiabilityMaturityDetails_1">
        <link:definition>9955555 - Disclosure - Leases - Schedule of Lessee, Operating Lease, Liability, Maturity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDetails" roleURI="http://bigbear.ai/role/IncomeTaxesDetails">
        <link:definition>9955556 - Disclosure - Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesDetails" roleURI="http://bigbear.ai/role/CommitmentsandContingenciesDetails">
        <link:definition>9955557 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityScheduleofAuthorizedStockDetails" roleURI="http://bigbear.ai/role/StockholdersEquityScheduleofAuthorizedStockDetails">
        <link:definition>9955558 - Disclosure - Stockholders&#8217; Equity - Schedule of Authorized Stock (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityNarrativeDetails" roleURI="http://bigbear.ai/role/StockholdersEquityNarrativeDetails">
        <link:definition>9955559 - Disclosure - Stockholders&#8217; Equity - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AttheMarketOfferingDetails" roleURI="http://bigbear.ai/role/AttheMarketOfferingDetails">
        <link:definition>9955560 - Disclosure - At-the-Market Offering (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesNarrativeDetails" roleURI="http://bigbear.ai/role/DerivativesNarrativeDetails">
        <link:definition>9955561 - Disclosure - Derivatives - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesScheduleofConversionOptionsDetails" roleURI="http://bigbear.ai/role/DerivativesScheduleofConversionOptionsDetails">
        <link:definition>9955562 - Disclosure - Derivatives - Schedule of Conversion Options (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesScheduleofDerivativesChangeinFairValueDetails" roleURI="http://bigbear.ai/role/DerivativesScheduleofDerivativesChangeinFairValueDetails">
        <link:definition>9955563 - Disclosure - Derivatives - Schedule of Derivatives Change in Fair Value (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesScheduleofStockholdersEquityNoteWarrantsorRightsDetails" roleURI="http://bigbear.ai/role/DerivativesScheduleofStockholdersEquityNoteWarrantsorRightsDetails">
        <link:definition>9955564 - Disclosure - Derivatives - Schedule of Stockholders' Equity Note, Warrants or Rights (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesScheduleofWarrantsIssuedandOutstandingDetails" roleURI="http://bigbear.ai/role/DerivativesScheduleofWarrantsIssuedandOutstandingDetails">
        <link:definition>9955565 - Disclosure - Derivatives - Schedule of Warrants Issued and Outstanding (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityBasedCompensationNarrativeDetails" roleURI="http://bigbear.ai/role/EquityBasedCompensationNarrativeDetails">
        <link:definition>9955566 - Disclosure - Equity-Based Compensation - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityBasedCompensationScheduleofStockOptionsDetails" roleURI="http://bigbear.ai/role/EquityBasedCompensationScheduleofStockOptionsDetails">
        <link:definition>9955567 - Disclosure - Equity-Based Compensation - Schedule of Stock Options (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityBasedCompensationScheduleofShareActivityDetails" roleURI="http://bigbear.ai/role/EquityBasedCompensationScheduleofShareActivityDetails">
        <link:definition>9955568 - Disclosure - Equity-Based Compensation - Schedule of Share Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityBasedCompensationScheduleofAssumptionsusedinDeterminingtheFairValueDetails" roleURI="http://bigbear.ai/role/EquityBasedCompensationScheduleofAssumptionsusedinDeterminingtheFairValueDetails">
        <link:definition>9955569 - Disclosure - Equity-Based Compensation - Schedule of Assumptions used in Determining the Fair Value (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityBasedCompensationScheduleofEquitybasedCompensationExpenseDetails" roleURI="http://bigbear.ai/role/EquityBasedCompensationScheduleofEquitybasedCompensationExpenseDetails">
        <link:definition>9955570 - Disclosure - Equity-Based Compensation - Schedule of Equity-based Compensation Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossPerShareScheduleofNumeratorsandDenominatorsDetails" roleURI="http://bigbear.ai/role/NetLossPerShareScheduleofNumeratorsandDenominatorsDetails">
        <link:definition>9955571 - Disclosure - Net Loss Per Share - Schedule of Numerators and Denominators (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails" roleURI="http://bigbear.ai/role/NetLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails">
        <link:definition>9955572 - Disclosure - Net Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesScheduleofRevenuesbyContractTypeDetails" roleURI="http://bigbear.ai/role/RevenuesScheduleofRevenuesbyContractTypeDetails">
        <link:definition>9955573 - Disclosure - Revenues - Schedule of Revenues by Contract Type (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueScheduleofRevenueRecognitionPatternDetails" roleURI="http://bigbear.ai/role/RevenueScheduleofRevenueRecognitionPatternDetails">
        <link:definition>9955574 - Disclosure - Revenue - Schedule of Revenue Recognition Pattern (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesScheduleofRevenuesbyMajorCustomerTypeDetails" roleURI="http://bigbear.ai/role/RevenuesScheduleofRevenuesbyMajorCustomerTypeDetails">
        <link:definition>9955575 - Disclosure - Revenues - Schedule of Revenues by Major Customer Type (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesScheduleofSummarizedActivityofAllowanceforExpectedCreditLossesDetails" roleURI="http://bigbear.ai/role/RevenuesScheduleofSummarizedActivityofAllowanceforExpectedCreditLossesDetails">
        <link:definition>9955576 - Disclosure - Revenues - Schedule of Summarized Activity of Allowance for Expected Credit Losses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesScheduleofConcentrationofRiskbyRiskFactorDetails" roleURI="http://bigbear.ai/role/RevenuesScheduleofConcentrationofRiskbyRiskFactorDetails">
        <link:definition>9955577 - Disclosure - Revenues - Schedule of Concentration of Risk, by Risk Factor (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesScheduleofContractBalancesDetails" roleURI="http://bigbear.ai/role/RevenuesScheduleofContractBalancesDetails">
        <link:definition>9955578 - Disclosure - Revenues - Schedule of Contract Balances (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesNarrativeDetails" roleURI="http://bigbear.ai/role/RevenuesNarrativeDetails">
        <link:definition>9955579 - Disclosure - Revenues - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesScheduleofNetEstimatesatCompletionAdjustmentsDetails" roleURI="http://bigbear.ai/role/RevenuesScheduleofNetEstimatesatCompletionAdjustmentsDetails">
        <link:definition>9955580 - Disclosure - Revenues - Schedule of Net Estimates at Completion Adjustments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesRemainingPerformanceObligationDetails" roleURI="http://bigbear.ai/role/RevenuesRemainingPerformanceObligationDetails">
        <link:definition>9955581 - Disclosure - Revenues - Remaining Performance Obligation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesRemainingPerformanceObligationDetails_1" roleURI="http://bigbear.ai/role/RevenuesRemainingPerformanceObligationDetails_1">
        <link:definition>9955581 - Disclosure - Revenues - Remaining Performance Obligation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentsDetails" roleURI="http://bigbear.ai/role/SegmentsDetails">
        <link:definition>9955582 - Disclosure - Segments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="bbai_RedeemableWarrantsMember" abstract="true" name="RedeemableWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_EarningsPerShareBasicAndDilutedEPSOtherDisclosureAbstract" abstract="true" name="EarningsPerShareBasicAndDilutedEPSOtherDisclosureAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="bbai_ConversionOfConvertibleDebtMember" abstract="true" name="ConversionOfConvertibleDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_StockIssuedDuringPeriodSharesWarrantsExercised" abstract="false" name="StockIssuedDuringPeriodSharesWarrantsExercised" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bbai_StockIssuedDuringPeriodValueWarrantsExercised" abstract="false" name="StockIssuedDuringPeriodValueWarrantsExercised" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_OperatingLeaseNoncashLeaseExpense" abstract="false" name="OperatingLeaseNoncashLeaseExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_FairValueAdjustmentsOfWarrantsAndDerivatives" abstract="false" name="FairValueAdjustmentsOfWarrantsAndDerivatives" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_IssuanceOfCommonStockForExerciseOfRDOAndPIPEWarrantsNetOfCashReceived" abstract="false" name="IssuanceOfCommonStockForExerciseOfRDOAndPIPEWarrantsNetOfCashReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_DerivativesFairValueAssumptionsTableTextBlock" abstract="false" name="DerivativesFairValueAssumptionsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="bbai_ScheduleOfDerivativesChangeInFairValueTableTextBlock" abstract="false" name="ScheduleOfDerivativesChangeInFairValueTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="bbai_ScheduleOfImpactOfTheNetEstimatesAtCompletionAdjustmentsOnTheCompanysOperatingTableTextBlock" abstract="false" name="ScheduleOfImpactOfTheNetEstimatesAtCompletionAdjustmentsOnTheCompanysOperatingTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="bbai_LiabilityReflectingUnpaidEmployeeSeparationCostsMember" abstract="true" name="LiabilityReflectingUnpaidEmployeeSeparationCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_AskSageAcquisitionMember" abstract="true" name="AskSageAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_CargoSeerAcquisitionMember" abstract="true" name="CargoSeerAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_BusinessCombinationEscrowDeposit" abstract="false" name="BusinessCombinationEscrowDeposit" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCashPaid" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCashPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationDeferredConsideration" abstract="false" name="BusinessCombinationDeferredConsideration" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredConsideration" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredConsideration" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_EscrowAmountAdjustments" abstract="false" name="EscrowAmountAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentEscrowAmount" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentEscrowAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCashAndEquivalents" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCashAndEquivalents" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCurrentAssetsReceivables" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCurrentAssetsReceivables" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCurrentAssetsPrepaidExpenseAndOtherAssets" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCurrentAssetsPrepaidExpenseAndOtherAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAssets" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCurrentLiabilitiesAccountsPayable" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCurrentLiabilitiesAccountsPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedLiabilities" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccruedLiabilities" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccruedLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentContractLiabilities" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentContractLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCurrentLiabilitiesOther" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCurrentLiabilitiesOther" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredTaxLiabilities" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredTaxLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentLiabilities" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAssetsAcquiredAndLiabilitiesAssumedNet" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAssetsAcquiredAndLiabilitiesAssumedNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_LicensesAndCertificationsMember" abstract="true" name="LicensesAndCertificationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_A2025RDOWarrantsMember" abstract="true" name="A2025RDOWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_IPOPrivateWarrantsMember" abstract="true" name="IPOPrivateWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_A2026NotesConversionOptionMember" abstract="true" name="A2026NotesConversionOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_A2029NotesConversionOptionMember" abstract="true" name="A2029NotesConversionOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_FinancialAssetsAndLiabilitiesFairValueDisclosure" abstract="false" name="FinancialAssetsAndLiabilitiesFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_DebtSecuritiesAvailableForSaleExcludingAccruedInterestAfterAllowanceForCreditLossCurrentMember" abstract="true" name="DebtSecuritiesAvailableForSaleExcludingAccruedInterestAfterAllowanceForCreditLossCurrentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_DebtSecuritiesAvailableForSaleExcludingAccruedInterestAfterAllowanceForCreditLossNoncurrentMember" abstract="true" name="DebtSecuritiesAvailableForSaleExcludingAccruedInterestAfterAllowanceForCreditLossNoncurrentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_FiniteLivedIntangibleAssetsAccumulatedImpairment" abstract="false" name="FiniteLivedIntangibleAssetsAccumulatedImpairment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_FiniteLivedIntangibleAssetsImpactOfForeignCurrencyTranslation" abstract="false" name="FiniteLivedIntangibleAssetsImpactOfForeignCurrencyTranslation" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" abstract="false" name="FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_PreContractCosts" abstract="false" name="PreContractCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_PrepaidSoftwareAndSubscriptionsCurrent" abstract="false" name="PrepaidSoftwareAndSubscriptionsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_A2026ConvertibleNotesMember" abstract="true" name="A2026ConvertibleNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_A2029ConvertibleNotesMember" abstract="true" name="A2029ConvertibleNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_ConvertibleDebtParValueMember" abstract="true" name="ConvertibleDebtParValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_A2026And2029ConvertibleNotesMember" abstract="true" name="A2026And2029ConvertibleNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_LiquidityConditionSatisfactionAxis" abstract="true" name="LiquidityConditionSatisfactionAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="bbai_LiquidityConditionSatisfactionDomain" abstract="true" name="LiquidityConditionSatisfactionDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_LiquidityConditionNotSatisfiedMember" abstract="true" name="LiquidityConditionNotSatisfiedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_DebtInstrumentConvertibleSharesIssuable" abstract="false" name="DebtInstrumentConvertibleSharesIssuable" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bbai_DebtInstrumentConvertibleDailyVolumeWeightedAveragePrice" abstract="false" name="DebtInstrumentConvertibleDailyVolumeWeightedAveragePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bbai_DebtInstrumentConvertibleAverageDailyTradingDays" abstract="false" name="DebtInstrumentConvertibleAverageDailyTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bbai_DebtInstrumentConvertibleForFirstTwoYearsAfterInitialIssuance" abstract="false" name="DebtInstrumentConvertibleForFirstTwoYearsAfterInitialIssuance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_DebtInstrumentConvertibleTermOfAfterInitialIssuance" abstract="false" name="DebtInstrumentConvertibleTermOfAfterInitialIssuance" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="bbai_DebtInstrumentConvertibleThereafter" abstract="false" name="DebtInstrumentConvertibleThereafter" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_DebtInstrumentConvertibleObligatedInterestOnlyPaymentsTerm" abstract="false" name="DebtInstrumentConvertibleObligatedInterestOnlyPaymentsTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="bbai_DebtInstrumentConvertibleInterestMakeWholePaymentsPercentage" abstract="false" name="DebtInstrumentConvertibleInterestMakeWholePaymentsPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bbai_DebtInstrumentConvertiblePercentageOfDailyVolumeWeightedAveragePrice" abstract="false" name="DebtInstrumentConvertiblePercentageOfDailyVolumeWeightedAveragePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bbai_NumberOfSubleases" abstract="false" name="NumberOfSubleases" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bbai_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_CommonStockVotingRightsVoteForEachShare" abstract="false" name="CommonStockVotingRightsVoteForEachShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bbai_May2024SalesAgreementMember" abstract="true" name="May2024SalesAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_AtTheMarketOfferingMember" abstract="true" name="AtTheMarketOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_AtTheMarketOfferingsMember" abstract="true" name="AtTheMarketOfferingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_CantorSecuritiesIncMember" abstract="true" name="CantorSecuritiesIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_SaleOfStockMaximumAggregateValueOfOffering" abstract="false" name="SaleOfStockMaximumAggregateValueOfOffering" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_CommissionPayableToBrokerDealerAndClearingOrganizationPercentOfGrossProceedsSold" abstract="false" name="CommissionPayableToBrokerDealerAndClearingOrganizationPercentOfGrossProceedsSold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bbai_SaleOfStockAuthorizedAmount" abstract="false" name="SaleOfStockAuthorizedAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_SaleOfStockRemainingAuthorizedAmount" abstract="false" name="SaleOfStockRemainingAuthorizedAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_A2024RDOWarrantsMember" abstract="true" name="A2024RDOWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_A2024PIPEWarrantsMember" abstract="true" name="A2024PIPEWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_A2024PIPEWarrantsEnteredIntoFebruary112025Member" abstract="true" name="A2024PIPEWarrantsEnteredIntoFebruary112025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_IPOPublicWarrantsMember" abstract="true" name="IPOPublicWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_ClassOfWarrantOrRightExercisablePeriodPostIssuance" abstract="false" name="ClassOfWarrantOrRightExercisablePeriodPostIssuance" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="bbai_DerivativeSettlementGainLossOnDerivativeNet" abstract="false" name="DerivativeSettlementGainLossOnDerivativeNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_ClassOfWarrantOrRightIssued" abstract="false" name="ClassOfWarrantOrRightIssued" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bbai_ClassOfWarrantOrRightRedemptionPrice" abstract="false" name="ClassOfWarrantOrRightRedemptionPrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bbai_MinimumPeriodOfPriorWrittenNoticeOfRedemptionOfWarrants" abstract="false" name="MinimumPeriodOfPriorWrittenNoticeOfRedemptionOfWarrants" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="bbai_ClassOfWarrantOrRightStrikePriceOfWarrantsOrRights" abstract="false" name="ClassOfWarrantOrRightStrikePriceOfWarrantsOrRights" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bbai_WarrantsRedemptionCovenantThresholdTradingPeriod" abstract="false" name="WarrantsRedemptionCovenantThresholdTradingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="bbai_WarrantsRedemptionCovenantThresholdConsecutiveTradingPeriod" abstract="false" name="WarrantsRedemptionCovenantThresholdConsecutiveTradingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="bbai_DerivativeInstrumentFairValuePricePerShare" abstract="false" name="DerivativeInstrumentFairValuePricePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bbai_DerivativeInstrumentFairValueAssumptionsExpectedTerm" abstract="false" name="DerivativeInstrumentFairValueAssumptionsExpectedTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="bbai_DerivativeInstrumentExpectedVolatilityRate" abstract="false" name="DerivativeInstrumentExpectedVolatilityRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bbai_DerivativeInstrumentRiskFreeInterestRate" abstract="false" name="DerivativeInstrumentRiskFreeInterestRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bbai_DerivativeInstrumentExpectedDividendRate" abstract="false" name="DerivativeInstrumentExpectedDividendRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bbai_PrivateWarrantsMember" abstract="true" name="PrivateWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_IncentiveUnitsMember" abstract="true" name="IncentiveUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_DiscretionaryPerformanceStockUnitsMember" abstract="true" name="DiscretionaryPerformanceStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_ClassBUnitIncentivePlanMember" abstract="true" name="ClassBUnitIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_ShortTermIncentivePlanPerformanceStockUnitsMember" abstract="true" name="ShortTermIncentivePlanPerformanceStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_A2021EmployeeStockPurchasePlanMember" abstract="true" name="A2021EmployeeStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_ShareBasedPaymentArrangementTrancheFourMember" abstract="true" name="ShareBasedPaymentArrangementTrancheFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_NonEmployeeDirectorMember" abstract="true" name="NonEmployeeDirectorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_IncentiveUnitsParticipationThreshold" abstract="false" name="IncentiveUnitsParticipationThreshold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bbai_IncentiveUnitsTranches" abstract="false" name="IncentiveUnitsTranches" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bbai_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPercentageForEachQuarter" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPercentageForEachQuarter" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bbai_ShareBasedCompensationArrangementByShareBasedPaymentAwardWithheldEmployeeContributionsCurrent" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardWithheldEmployeeContributionsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bbai_EmployeeStockPurchasePlanMember" abstract="true" name="EmployeeStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_CostReimbursableMember" abstract="true" name="CostReimbursableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_UnitedStatesGovernmentMember" abstract="true" name="UnitedStatesGovernmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_NonUnitedStatesGovernmentAndCommercialMember" abstract="true" name="NonUnitedStatesGovernmentAndCommercialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_CustomerAMember" abstract="true" name="CustomerAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_CustomerBMember" abstract="true" name="CustomerBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_CustomerCMember" abstract="true" name="CustomerCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_CustomerDMember" abstract="true" name="CustomerDMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_CustomerEMember" abstract="true" name="CustomerEMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bbai_AllOthersMember" abstract="true" name="AllOthersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
