<?xml version="1.0" encoding="UTF-8"?><ns2:edgarSubmission xmlns:com="http://www.sec.gov/edgar/common" xmlns:ns2="http://www.sec.gov/edgar/ownership">
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        <ns2:filerInfo>
            <ns2:filer>
                <ns2:filerCredentials>
                    <ns2:cik>0001013082</ns2:cik>
                    <ns2:ccc>XXXXXXXX</ns2:ccc>
                </ns2:filerCredentials>
            </ns2:filer>
            <ns2:liveTestFlag>LIVE</ns2:liveTestFlag>



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    <ns2:formData>
        <ns2:issuerInfo>
            <ns2:issuerCik>0001336920</ns2:issuerCik>
            <ns2:issuerName>Leidos Holdings, Inc.</ns2:issuerName>
            <ns2:secFileNumber>001-33072</ns2:secFileNumber>
            <ns2:issuerAddress>
                <com:street1>1750 Presidents Street</com:street1>
                <com:city>Reston</com:city>
                <com:stateOrCountry>VA</com:stateOrCountry>
                <com:zipCode>20190</com:zipCode>
            </ns2:issuerAddress>
            <ns2:issuerContactPhone>1-571-526-6000</ns2:issuerContactPhone>
            <ns2:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Roger Krone</ns2:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <ns2:relationshipsToIssuer>
                <ns2:relationshipToIssuer>Former CEO</ns2:relationshipToIssuer>
            </ns2:relationshipsToIssuer>
        </ns2:issuerInfo>
        <ns2:securitiesInformation>
            <ns2:securitiesClassTitle>Common Stock</ns2:securitiesClassTitle>
            <ns2:brokerOrMarketmakerDetails>
                <ns2:name>Goldman Sachs &amp; Co. LLC</ns2:name>
                <ns2:address>
                    <com:street1>200 West Street</com:street1>
                    <com:city>New York</com:city>
                    <com:stateOrCountry>NY</com:stateOrCountry>
                    <com:zipCode>10282</com:zipCode>
                </ns2:address>
            </ns2:brokerOrMarketmakerDetails>
            <ns2:noOfUnitsSold>35568</ns2:noOfUnitsSold>
            <ns2:aggregateMarketValue>2989134.72</ns2:aggregateMarketValue>
            <ns2:noOfUnitsOutstanding>137167264</ns2:noOfUnitsOutstanding>
            <ns2:approxSaleDate>06/13/2023</ns2:approxSaleDate>
            <ns2:securitiesExchangeName>NYSE</ns2:securitiesExchangeName>
        </ns2:securitiesInformation>
        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Commmon Stock</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/12/2021</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Acquired as compensation -- Restricted Stock Units</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>The Issuer</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>35568</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/12/2021</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</ns2:nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <ns2:remarks>All shares to be sold by Roger A. Krone Revocable Trust dated 4/24/2020, Mr. Roger A Krone &amp; Mrs. Helen B. Krone, Trustees.</ns2:remarks>
        <ns2:noticeSignature>
            <ns2:noticeDate>06/13/2023</ns2:noticeDate>
            <ns2:planAdoptionDates/>
            <ns2:signature>Goldman Sachs &amp; Co. LLC on behalf of Roger A. Krone</ns2:signature>
        </ns2:noticeSignature>
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144
0001013082
XXXXXXXX
LIVE
0001336920
Leidos Holdings, Inc.
001-33072
1750 Presidents Street
Reston
VA
20190
1-571-526-6000
Roger Krone
Former CEO
Common Stock
Goldman Sachs & Co. LLC
200 West Street
New York
NY
10282
35568
2989134.72
137167264
06/13/2023
NYSE
Commmon Stock
03/12/2021
Acquired as compensation -- Restricted Stock Units
The Issuer
N
35568
03/12/2021
Compensation
Y
All shares to be sold by Roger A. Krone Revocable Trust dated 4/24/2020, Mr. Roger A Krone & Mrs. Helen B. Krone, Trustees.
06/13/2023
Goldman Sachs & Co. LLC on behalf of Roger A. Krone