-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Epy/iBX2ERvVUNlnbEES69m9TEvUeh/08m0vWzhc8/P0/lFRPjwJlmblV0fvn8Q+
 u/fILuhL4w7q81As9MmR/w==

<SEC-DOCUMENT>0001140361-05-001930.txt : 20050304
<SEC-HEADER>0001140361-05-001930.hdr.sgml : 20050304
<ACCEPTANCE-DATETIME>20050304182755
ACCESSION NUMBER:		0001140361-05-001930
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050301
FILED AS OF DATE:		20050304
DATE AS OF CHANGE:		20050304

REPORTING-OWNER:	

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

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13463
		FILM NUMBER:		05662398

	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>3
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-03-01</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <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>3349 HIGHWAY 138</rptOwnerStreet1>
            <rptOwnerStreet2>BUILDING D SUITE B</rptOwnerStreet2>
            <rptOwnerCity>WALL</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07719</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Options (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.60</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2006-10-01</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2010-07-29</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>200000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Options (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.32</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-01-03</value>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2010-12-11</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>50000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These options vest in full on October 1, 2006.</footnote>
        <footnote id="F2">These options vest in full on January 1, 2005.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Charles P. Romeo</signatureName>
        <signatureDate>2005-03-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----