<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001791393</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000920148</issuerCik>
      <issuerName>LABORATORY CORP OF AMERICA HOLDINGS</issuerName>
      <secFileNumber>001-11353</secFileNumber>
      <issuerAddress>
        <com:street1>358 S MAIN ST</com:street1>
        <com:city>BURLINGTON</com:city>
        <com:stateOrCountry>NC</com:stateOrCountry>
        <com:zipCode>27215</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>3362291127</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Kirchgraber Paul R</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>900 Salem Street</com:street1>
          <com:city>Smithfield</com:city>
          <com:stateOrCountry>RI</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>4300</noOfUnitsSold>
      <aggregateMarketValue>932706.98</aggregateMarketValue>
      <noOfUnitsOutstanding>88600000</noOfUnitsOutstanding>
      <approxSaleDate>05/19/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>05/19/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Options Granted- 02/04/2020</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>4300</amountOfSecuritiesAcquired>
      <paymentDate>05/19/2023</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Paul Kirchgraber</name>
        <address>
          <com:street1>358 South Main Street</com:street1>
          <com:city>Burlington</com:city>
          <com:stateOrCountry>NC</com:stateOrCountry>
          <com:zipCode>27215</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>02/21/2023</saleDate>
      <amountOfSecuritiesSold>8000</amountOfSecuritiesSold>
      <grossProceeds>2004676.23</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/19/2023</noticeDate>
      <signature>/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Paul Kirchgraber</signature>
    </noticeSignature>
  </formData>
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144
0001791393
XXXXXXXX
LIVE
0000920148
LABORATORY CORP OF AMERICA HOLDINGS
001-11353
358 S MAIN ST
BURLINGTON
NC
27215
3362291127
Kirchgraber Paul R
Officer
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
RI
02917
4300
932706.98
88600000
05/19/2023
NYSE
Common
05/19/2023
Options Granted- 02/04/2020
Issuer
N
4300
05/19/2023
Cash
N
Paul Kirchgraber
358 South Main Street
Burlington
NC
27215
Common
02/21/2023
8000
2004676.23
05/19/2023
/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Paul Kirchgraber