-----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,
 BFgFNqX0aQo28qlhFNCZTUYsAuCnhVZegz3elF6+wioYjnvTcs94kDRBeMXTsch/
 dDESJVu5AuCjh0d33uDwJw==

<SEC-DOCUMENT>0001219038-04-000006.txt : 20041015
<SEC-HEADER>0001219038-04-000006.hdr.sgml : 20041015
<ACCEPTANCE-DATETIME>20041015130903
ACCESSION NUMBER:		0001219038-04-000006
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041012
FILED AS OF DATE:		20041015
DATE AS OF CHANGE:		20041015

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DONAHUE ROBERT E
		CENTRAL INDEX KEY:			0001276013

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23067
		FILM NUMBER:		041080510

	BUSINESS ADDRESS:	
		STREET 1:		296 HOWARD STREET
		CITY:			NORTHBORO
		STATE:			MA
		ZIP:			01532
		BUSINESS PHONE:		5083937409

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CONCORD COMMUNICATIONS INC
		CENTRAL INDEX KEY:			0000915290
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				042710876
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		600 NICKERSON RD
		CITY:			MARLBORO
		STATE:			MA
		ZIP:			01752
		BUSINESS PHONE:		5084604646

	MAIL ADDRESS:	
		STREET 1:		600 NICKERSON RD
		CITY:			MARLBORO
		STATE:			MA
		ZIP:			01752
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2004-10-12</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000915290</issuerCik>
        <issuerName>CONCORD COMMUNICATIONS INC</issuerName>
        <issuerTradingSymbol>CCRD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001276013</rptOwnerCik>
            <rptOwnerName>DONAHUE ROBERT E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CONCORD COMMUNICATIONS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>600 NICKERSON ROAD</rptOwnerStreet2>
            <rptOwnerCity>MARLBORO</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01752</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Non-qualified Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.41</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-10-12</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2012-10-12</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">6,250 shares of the option become exercisable on 10/12/05 and the balance will become exercisable in equal installments at the end of each three-month period thereafter.  The option becomes fully vested on 10/12/08.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Robert E. Donahue</signatureName>
        <signatureDate>2004-10-14</signatureDate>
    </ownerSignature>
</ownershipDocument>

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