content: <?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>0001250902</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000860731</issuerCik>
        <issuerName>TYLER TECHNOLOGIES INC</issuerName>
        <secFileNumber>001-10485</secFileNumber>
        <issuerAddress>
          <com:street1>5101 TENNYSON PKWY</com:street1>
          <com:city>PLANO</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>75024</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>9727133700</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>MOORE H LYNN JR</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>900 Salem St</com:street1>
            <com:city>Smithfield</com:city>
            <com:stateOrCountry>RI</com:stateOrCountry>
            <com:zipCode>02917</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>2002</noOfUnitsSold>
        <aggregateMarketValue>848461.30</aggregateMarketValue>
        <noOfUnitsOutstanding>42276136</noOfUnitsOutstanding>
        <approxSaleDate>03/08/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/01/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2002</amountOfSecuritiesAcquired>
        <paymentDate>03/01/2024</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Horace L. Moore</name>
          <address>
            <com:street1>5101 Tennyson Parkway</com:street1>
            <com:city>Plano</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75024</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>02/20/2024</saleDate>
        <amountOfSecuritiesSold>7500</amountOfSecuritiesSold>
        <grossProceeds>3262623.75</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Horace L. Moore</name>
          <address>
            <com:street1>5101 Tennyson Parkway</com:street1>
            <com:city>Plano</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75024</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>02/22/2024</saleDate>
        <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
        <grossProceeds>4359949.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Horace L. Moore</name>
          <address>
            <com:street1>5101 Tennyson Parkway</com:street1>
            <com:city>Plano</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75024</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>02/26/2024</saleDate>
        <amountOfSecuritiesSold>7500</amountOfSecuritiesSold>
        <grossProceeds>3317387.25</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Horace L. Moore</name>
          <address>
            <com:street1>5101 Tennyson Parkway</com:street1>
            <com:city>Plano</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75024</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>03/07/2024</saleDate>
        <amountOfSecuritiesSold>1849</amountOfSecuritiesSold>
        <grossProceeds>778773.16</grossProceeds>
      </securitiesSoldInPast3Months>
      <remarks>Horace L. Moore and H. Lynn Moore, Jr. are one and the same person.</remarks>
      <noticeSignature>
        <noticeDate>03/08/2024</noticeDate>
        <signature>/s/ Jodi Disselkamp, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Horace L. Moore</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001250902
  XXXXXXXX
  LIVE
  0000860731
  TYLER TECHNOLOGIES INC
  001-10485
  5101 TENNYSON PKWY
  PLANO
  TX
  75024
  9727133700
  MOORE H LYNN JR
  Officer
  Director
  Common
  Fidelity Brokerage Services LLC
  900 Salem St
  Smithfield
  RI
  02917
  2002
  848461.30
  42276136
  03/08/2024
  NYSE
  Common
  03/01/2024
  Restricted Stock Vesting
  Issuer
  N
  2002
  03/01/2024
  Compensation
  N
  Horace L. Moore
  5101 Tennyson Parkway
  Plano
  TX
  75024
  Common
  02/20/2024
  7500
  3262623.75
  Horace L. Moore
  5101 Tennyson Parkway
  Plano
  TX
  75024
  Common
  02/22/2024
  10000
  4359949.00
  Horace L. Moore
  5101 Tennyson Parkway
  Plano
  TX
  75024
  Common
  02/26/2024
  7500
  3317387.25
  Horace L. Moore
  5101 Tennyson Parkway
  Plano
  TX
  75024
  Common
  03/07/2024
  1849
  778773.16
  Horace L. Moore and H. Lynn Moore, Jr. are one and the same person.
  03/08/2024
  /s/ Jodi Disselkamp, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Horace L. Moore