    <SEC-DOCUMENT>0000929008-17-000014-index.html : 20170524
    <SEC-HEADER>0000929008-17-000014.hdr.sgml : 20170524
    <ACCEPTANCE-DATETIME>20170524065025
    ACCESSION NUMBER:		0000929008-17-000014
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		14
    CONFORMED PERIOD OF REPORT:	20170524
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20170524
    DATE AS OF CHANGE:		20170524

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			WESCO INTERNATIONAL INC
    		CENTRAL INDEX KEY:			0000929008
    		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-ELECTRICAL APPARATUS & EQUIPMENT, WIRING SUPPLIES [5063]
    		IRS NUMBER:				251723342
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-14989
    		FILM NUMBER:		17865462

    	BUSINESS ADDRESS:
    		STREET 1:		225 WEST STATION SQUARE DRIVE
    		STREET 2:		STE 700
    		CITY:			PITTSBURGH
    		STATE:			PA
    		ZIP:			15219
    		BUSINESS PHONE:		4124542200

    	MAIL ADDRESS:
    		STREET 1:		225 WEST STATION SQUARE DRIVE
    		STREET 2:		STE 700
    		CITY:			PITTSBURGH
    		STATE:			PA
    		ZIP:			15219

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	CDW HOLDING CORP
    		DATE OF NAME CHANGE:	19971217
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>wcc-2017epgconference8k.htm
    <DESCRIPTION>FORM 8-K
    <TEXT>
    Document 1 - file: wcc-2017epgconference8k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>wcc-2017epgpresentation.htm
    <DESCRIPTION>SLIDE PRESENTATION
    <TEXT>
    Document 2 - file: wcc-2017epgpresentation.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>wcc-2017epgpresentation001.jpg
    <TEXT>
    Document 3 - file: wcc-2017epgpresentation001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>wcc-2017epgpresentation002.jpg
    <TEXT>
    Document 4 - file: wcc-2017epgpresentation002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>wcc-2017epgpresentation003.jpg
    <TEXT>
    Document 5 - file: wcc-2017epgpresentation003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>wcc-2017epgpresentation004.jpg
    <TEXT>
    Document 6 - file: wcc-2017epgpresentation004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>wcc-2017epgpresentation005.jpg
    <TEXT>
    Document 7 - file: wcc-2017epgpresentation005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>wcc-2017epgpresentation006.jpg
    <TEXT>
    Document 8 - file: wcc-2017epgpresentation006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>wcc-2017epgpresentation007.jpg
    <TEXT>
    Document 9 - file: wcc-2017epgpresentation007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>wcc-2017epgpresentation008.jpg
    <TEXT>
    Document 10 - file: wcc-2017epgpresentation008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>wcc-2017epgpresentation009.jpg
    <TEXT>
    Document 11 - file: wcc-2017epgpresentation009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>wcc-2017epgpresentation010.jpg
    <TEXT>
    Document 12 - file: wcc-2017epgpresentation010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>wcc-2017epgpresentation011.jpg
    <TEXT>
    Document 13 - file: wcc-2017epgpresentation011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>wcc-2017epgpresentation012.jpg
    <TEXT>
    Document 14 - file: wcc-2017epgpresentation012.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>