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 Street</com:street1>
            <com:city>Smithfield</com:city>
            <com:stateOrCountry>RI</com:stateOrCountry>
            <com:zipCode>02917</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>5000</noOfUnitsSold>
        <aggregateMarketValue>2065868.48</aggregateMarketValue>
        <noOfUnitsOutstanding>42124186</noOfUnitsOutstanding>
        <approxSaleDate>11/07/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/26/2020</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1495</amountOfSecuritiesAcquired>
        <paymentDate>02/26/2020</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/01/2021</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2147</amountOfSecuritiesAcquired>
        <paymentDate>03/01/2021</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/26/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1358</amountOfSecuritiesAcquired>
        <paymentDate>02/26/2022</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>09/01/2023</saleDate>
        <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
        <grossProceeds>1982928.96</grossProceeds>
      </securitiesSoldInPast3Months>
      <remarks>Horace L Moore and H Lynn Moore Jr. are one in the same person.</remarks>
      <noticeSignature>
        <noticeDate>11/07/2023</noticeDate>
        <signature>/s/ Ryan Riviere, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Horace L. Moore</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4638}]
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 Street
  Smithfield
  RI
  02917
  5000
  2065868.48
  42124186
  11/07/2023
  NYSE
  Common
  02/26/2020
  Restricted Stock Vesting
  Issuer
  N
  1495
  02/26/2020
  Compensation
  Common
  03/01/2021
  Restricted Stock Vesting
  Issuer
  N
  2147
  03/01/2021
  Compensation
  Common
  02/26/2022
  Restricted Stock Vesting
  Issuer
  N
  1358
  02/26/2022
  Compensation
  N
  Horace L. Moore
  5101 TENNYSON PARKWAY
  PLANO
  TX
  75024
  Common
  09/01/2023
  5000
  1982928.96
  Horace L Moore and H Lynn Moore Jr. are one in the same person.
  11/07/2023
  /s/ Ryan Riviere, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Horace L. Moore