-----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,
 FdzahDdU46Q1qhHi4eQfZefbifxxKz42B5WyOoZkyomPCJjjHypIgeOlgtRHjemH
 /SliIoJQ76eqEPUE4sPr3g==

<SEC-DOCUMENT>0001192482-06-000348.txt : 20060630
<SEC-HEADER>0001192482-06-000348.hdr.sgml : 20060630
<ACCEPTANCE-DATETIME>20060630135434
ACCESSION NUMBER:		0001192482-06-000348
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060616
FILED AS OF DATE:		20060630
DATE AS OF CHANGE:		20060630

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Pini Ralph
		CENTRAL INDEX KEY:			0001300592

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-22302
		FILM NUMBER:		06936826

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		8473919400

	MAIL ADDRESS:	
		STREET 1:		C/O ISCO INTERNATIONAL, INC.
		STREET 2:		451 KINGSTON COURT
		CITY:			MOUNT PROSPECT
		STATE:			IL
		ZIP:			60056

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ISCO INTERNATIONAL INC
		CENTRAL INDEX KEY:			0000888693
		STANDARD INDUSTRIAL CLASSIFICATION:	INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
		IRS NUMBER:				363688459
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		451 KINGSTON CT
		CITY:			MOUNT PROSPECT
		STATE:			IL
		ZIP:			60056
		BUSINESS PHONE:		8473919400

	MAIL ADDRESS:	
		STREET 1:		451 KINGSTON COURT
		CITY:			MT PROSPECT
		STATE:			IL
		ZIP:			60056
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-06-16</periodOfReport>

    <issuer>
        <issuerCik>0000888693</issuerCik>
        <issuerName>ISCO INTERNATIONAL INC</issuerName>
        <issuerTradingSymbol>ISO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001300592</rptOwnerCik>
            <rptOwnerName>Pini Ralph</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ISCO INTERNATIONAL, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1001 CAMBRIDGE DRIVE</rptOwnerStreet2>
            <rptOwnerCity>ELK GROVE VILLAGE</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60007</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2006-06-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>45000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>76500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Restricted shares awarded to Mr. Pini which will vest in four equal installments of 11,250 shares on each of September 15, 2006, December 15, 2006, March 15, 2007 and June 15, 2007.</footnote>
        <footnote id="F2">Mr. Pini did not pay for the shares in question; they were awarded to him pursuant to the Issuer's non-employee director compensation policy.  25,000 shares were awarded for his service as a Board member; 12,500 were awarded for his service as Chairman of the Corporate Governance Committee; and 7,500 shares were awarded for his service on the Compensation Committee.  The closing price of the subject shares on June 16, 2006 was $0.32 per share.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Frank Cesario, Attorney-in-Fact for Ralph Pini</signatureName>
        <signatureDate>2006-06-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----