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    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001533449</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



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    <issuerInfo>
      <issuerCik>0001443646</issuerCik>
      <issuerName>Booz Allen Hamilton Holding Corp</issuerName>
      <secFileNumber>001-34972</secFileNumber>
      <issuerAddress>
        <com:street1>8283 GREENSBORO DRIVE</com:street1>
        <com:city>MCLEAN</com:city>
        <com:stateOrCountry>VA</com:stateOrCountry>
        <com:zipCode>22102</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>703-902-5000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Thompson Elizabeth M</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Class A</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>900 Salem Street</com:street1>
          <com:city>Smitfhield</com:city>
          <com:stateOrCountry>RI</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>27925</noOfUnitsSold>
      <aggregateMarketValue>2764575.00</aggregateMarketValue>
      <noOfUnitsOutstanding>132275873</noOfUnitsOutstanding>
      <approxSaleDate>04/21/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Class A</securitiesClassTitle>
      <acquiredDate>04/21/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Options Granted - 05/20/2020</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>11613</amountOfSecuritiesAcquired>
      <paymentDate>04/21/2023</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Class A</securitiesClassTitle>
      <acquiredDate>04/21/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Options Granted - 05/22/2019</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>16312</amountOfSecuritiesAcquired>
      <paymentDate>04/21/2023</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>04/21/2023</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>02/03/2023</planAdoptionDate>
      </planAdoptionDates>
      <signature>/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Elizabeth Thompson</signature>
    </noticeSignature>
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144
0001533449
XXXXXXXX
LIVE
0001443646
Booz Allen Hamilton Holding Corp
001-34972
8283 GREENSBORO DRIVE
MCLEAN
VA
22102
703-902-5000
Thompson Elizabeth M
Officer
Class A
Fidelity Brokerage Services LLC
900 Salem Street
Smitfhield
RI
02917
27925
2764575.00
132275873
04/21/2023
NYSE
Class A
04/21/2023
Options Granted - 05/20/2020
Issuer
N
11613
04/21/2023
Cash
Class A
04/21/2023
Options Granted - 05/22/2019
Issuer
N
16312
04/21/2023
Cash
Y
04/21/2023
02/03/2023
/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Elizabeth Thompson