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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 PjLutry+sFyft2p1qI68idrHQD0UIv269nOQoZYX22H6X40Iq8sAIk4v0X8rY2hB
 YM0KCQSECrzYu66wazrOBg==

<SEC-DOCUMENT>0001140361-03-004903.txt : 20031215
<SEC-HEADER>0001140361-03-004903.hdr.sgml : 20031215
<ACCEPTANCE-DATETIME>20031215201110
ACCESSION NUMBER:		0001140361-03-004903
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031211
FILED AS OF DATE:		20031215

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ROMEO CHARLES P
		CENTRAL INDEX KEY:			0001248300

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13463
		FILM NUMBER:		031055895

	BUSINESS ADDRESS:	
		STREET 1:		1285 CORPORATE CENTER DRIVE
		STREET 2:		SUITE 175
		CITY:			EAGAN
		STATE:			MN
		ZIP:			55121
		BUSINESS PHONE:		6516870414

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIO KEY INTERNATIONAL INC
		CENTRAL INDEX KEY:			0001019034
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
		IRS NUMBER:				411761861
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1285 CORPORATE CENTER DR.
		STREET 2:		SUITE 175
		CITY:			EAGAN
		STATE:			MN
		ZIP:			55121
		BUSINESS PHONE:		6516870414

	MAIL ADDRESS:	
		STREET 1:		1285 CORPORATE CENTER DR.
		STREET 2:		SUITE 175
		CITY:			EAGAN
		STATE:			MN
		ZIP:			55121

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SAC TECHNOLOGIES INC
		DATE OF NAME CHANGE:	19961115
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
<periodOfReport>2003-12-11</periodOfReport>
<notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0001019034</issuerCik>
        <issuerName>BIO KEY INTERNATIONAL INC</issuerName>
        <issuerTradingSymbol>BKYI</issuerTradingSymbol>
</issuer>
<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001248300</rptOwnerCik>
            <rptOwnerName>ROMEO CHARLES P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1285 CORPORATE CENTER DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE NO. 175</rptOwnerStreet2>
            <rptOwnerCity>EAGAN</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55121</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector>
<isOfficer>0</isOfficer>
<isTenPercentOwner>0</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle></officerTitle>
<otherText></otherText>
</reportingOwnerRelationship>
</reportingOwner>
<derivativeTable>
<derivativeTransaction>
<securityTitle>
<value>Stock Option (right to buy)</value>
</securityTitle>
<conversionOrExercisePrice>
<value>1.32</value>
</conversionOrExercisePrice>
<transactionDate>
<value>2003-12-11</value>
</transactionDate>
<deemedExecutionDate>
</deemedExecutionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>A</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionTimeliness>
<value></value>
</transactionTimeliness>
<transactionAmounts>
<transactionShares>
<value>50000</value>
</transactionShares>
<transactionPricePerShare>
<value>0</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value>A</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<value>2005-01-03</value>
<footnoteId id="F1"/>
</exerciseDate>
<expirationDate>
<value>2010-12-10</value>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value>50000</value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>50000</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
<natureOfOwnership>
<value></value>
</natureOfOwnership>
</ownershipNature>
</derivativeTransaction>
</derivativeTable>
<footnotes>
<footnote id="F1">These options to acquire common stock vest in full on January 3, 2005.</footnote>
</footnotes>
<remarks></remarks>
<ownerSignature>
<signatureName>/s/ Charles P. Romeo</signatureName>
<signatureDate>2003-12-12</signatureDate>
</ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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