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    <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>4906</noOfUnitsSold>
      <aggregateMarketValue>1861183.73</aggregateMarketValue>
      <noOfUnitsOutstanding>41925317</noOfUnitsOutstanding>
      <approxSaleDate>05/03/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>06/30/2022</acquiredDate>
      <natureOfAcquisitionTransaction>ESPP Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>18</amountOfSecuritiesAcquired>
      <paymentDate>06/30/2022</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/31/2022</acquiredDate>
      <natureOfAcquisitionTransaction>ESPP Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>33</amountOfSecuritiesAcquired>
      <paymentDate>03/31/2022</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>08/02/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>170</amountOfSecuritiesAcquired>
      <paymentDate>08/02/2021</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/26/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>4685</amountOfSecuritiesAcquired>
      <paymentDate>02/26/2021</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>02/21/2023</saleDate>
      <amountOfSecuritiesSold>6000</amountOfSecuritiesSold>
      <grossProceeds>2010002.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Horace 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>03/03/2023</saleDate>
      <amountOfSecuritiesSold>4417</amountOfSecuritiesSold>
      <grossProceeds>1442764.46</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>Horace L Moore and H Lynn Moore Jr are one and the same person</remarks>
    <noticeSignature>
      <noticeDate>05/03/2023</noticeDate>
      <signature>/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Horace Moore</signature>
    </noticeSignature>
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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
4906
1861183.73
41925317
05/03/2023
NYSE
Common
06/30/2022
ESPP Purchase
Issuer
N
18
06/30/2022
Cash
Common
03/31/2022
ESPP Purchase
Issuer
N
33
03/31/2022
Cash
Common
08/02/2021
Stock Option Exercise
Issuer
N
170
08/02/2021
Cash
Common
02/26/2021
Restricted Stock Vesting
Issuer
N
4685
02/26/2021
Compensation
N
Horace L Moore
5101 TENNYSON PARKWAY
PLANO
TX
75024
Common
02/21/2023
6000
2010002.00
Horace Moore
5101 TENNYSON PARKWAY
PLANO
TX
75024
Common
03/03/2023
4417
1442764.46
Horace L Moore and H Lynn Moore Jr are one and the same person
05/03/2023
/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Horace Moore