<SEC-DOCUMENT>0000891092-21-003855-index.html : 20210428
<SEC-HEADER>0000891092-21-003855.hdr.sgml : 20210428
<ACCEPTANCE-DATETIME>20210428082753
ACCESSION NUMBER:		0000891092-21-003855
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20210428
DATE AS OF CHANGE:		20210428

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OMNICOM GROUP INC.
		CENTRAL INDEX KEY:			0000029989
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-ADVERTISING AGENCIES [7311]
		IRS NUMBER:				131514814
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-236502
		FILM NUMBER:		21861483

	BUSINESS ADDRESS:	
		STREET 1:		280 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
		BUSINESS PHONE:		2124153600

	MAIL ADDRESS:	
		STREET 1:		280 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OMNICOM GROUP INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DOYLE DANE BERNBACH GROUP INC
		DATE OF NAME CHANGE:	19861117

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DOYLE DANE BERNBACH INTERNATIONAL INC
		DATE OF NAME CHANGE:	19850604
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B5
<SEQUENCE>1
<FILENAME>e13348-424b5.htm
<DESCRIPTION>PRELIMINARY PROSPECTUS SUPPLEMENT
<TEXT>
Document 1 - file: e13348-424b5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>omnismall.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: omnismall.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>omclogo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: omclogo.jpg

</DOCUMENT>
</SEC-DOCUMENT>