content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
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      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001483620</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000056047</issuerCik>
        <issuerName>KIRBY CORP</issuerName>
        <secFileNumber>001-07615</secFileNumber>
        <issuerAddress>
          <com:street1>55 WAUGH DRIVE SUITE 1000</com:street1>
          <com:city>HOUSTON</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>77007</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>7134351000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Grzebinski David W</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Merrill Lynch</name>
          <address>
            <com:street1>3455 Peachtree Rd NE</com:street1>
            <com:street2>Suite 1000</com:street2>
            <com:city>Atlanta</com:city>
            <com:stateOrCountry>GA</com:stateOrCountry>
            <com:zipCode>30326</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>7000</noOfUnitsSold>
        <aggregateMarketValue>593051.00</aggregateMarketValue>
        <noOfUnitsOutstanding>59100000</noOfUnitsOutstanding>
        <approxSaleDate>02/06/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/03/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of a Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>KIRBY CORP</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>7000</amountOfSecuritiesAcquired>
        <paymentDate>02/03/2024</paymentDate>
        <natureOfPayment>Compensatory Payment</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>David W. Grzebinski</name>
          <address>
            <com:street1>55 WAUGH DRIVE</com:street1>
            <com:street2>SUITE 1000</com:street2>
            <com:city>Houston</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>77007</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Kirby Corp - Common</securitiesClassTitle>
        <saleDate>12/01/2023</saleDate>
        <amountOfSecuritiesSold>4000</amountOfSecuritiesSold>
        <grossProceeds>307120.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>02/06/2024</noticeDate>
        <signature>David W. Grzebinski</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001483620
  XXXXXXXX
  LIVE
  0000056047
  KIRBY CORP
  001-07615
  55 WAUGH DRIVE SUITE 1000
  HOUSTON
  TX
  77007
  7134351000
  Grzebinski David W
  Officer
  Common
  Merrill Lynch
  3455 Peachtree Rd NE
  Suite 1000
  Atlanta
  GA
  30326
  7000
  593051.00
  59100000
  02/06/2024
  NYSE
  Common
  02/03/2024
  Vesting of a Stock Award
  KIRBY CORP
  N
  7000
  02/03/2024
  Compensatory Payment
  N
  David W. Grzebinski
  55 WAUGH DRIVE
  SUITE 1000
  Houston
  TX
  77007
  Kirby Corp - Common
  12/01/2023
  4000
  307120.00
  02/06/2024
  David W. Grzebinski