<?xml version="1.0"?>
<!-- - EDGAR Ease Plus 1.0                                   07/25/03  TT    -->
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
   <periodOfReport>2003-12-31</periodOfReport>
   <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000870743</issuerCik>
        <issuerName>GROEN BROTHERS AVIATION INC /UT/</issuerName>
        <issuerTradingSymbol>GNBA</issuerTradingSymbol>
   </issuer>
   <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001263560</rptOwnerCik>
            <rptOwnerName>GROEN H JAY</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GROEN BROTHERS AVIATION INC</rptOwnerStreet1>
            <rptOwnerStreet2>2640 WEST CALIFORNIA AVE STE A</rptOwnerStreet2>
            <rptOwnerCity>SALT LAKE CITY</rptOwnerCity>
            <rptOwnerState>UT</rptOwnerState>
            <rptOwnerZipCode>84104</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
         <isDirector>1</isDirector>
         <isOfficer>0</isOfficer>
         <isTenPercentOwner>0</isTenPercentOwner>
         <isOther>0</isOther>
      </reportingOwnerRelationship>
   </reportingOwner>
 <derivativeTable>
   <derivativeTransaction>
      <securityTitle>
         <value>Stock Option Right to Buy</value>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>.25</value>
      </conversionOrExercisePrice>
      <transactionDate>
         <value>2003-12-31</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>A</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>50000</value>
         </transactionShares>
         <transactionPricePerShare>
           <value>0</value>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>A</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <exerciseDate>
         <value>2004-12-31</value>
      </exerciseDate>
      <expirationDate>
         <value>2008-12-30</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>50000</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>7500000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeTransaction>
 </derivativeTable>
   <ownerSignature>
      <signatureName>/s/H. Jay Groen</signatureName>
      <signatureDate>2003-12-18</signatureDate>
   </ownerSignature>
</ownershipDocument>
[{"type": "4", "sequence": "1", "filename": "groenjay4_ex.xml", "secsgml_size_bytes": 3224}]
X0201
4
2003-12-31
0
0000870743
GROEN BROTHERS AVIATION INC /UT/
GNBA
0001263560
GROEN H JAY
C/O GROEN BROTHERS AVIATION INC
2640 WEST CALIFORNIA AVE STE A
SALT LAKE CITY
UT
84104
1
0
0
0
Stock Option Right to Buy
.25
2003-12-31
4
A
0
50000
0
A
2004-12-31
2008-12-30
Common Shares
50000
7500000
D
/s/H. Jay Groen
2003-12-18