Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Brymer Charles E
 2. Date of Event Requiring Statement (Month/Day/Year)
04/20/2006		 3. Issuer Name and Ticker or Trading Symbol
OMNICOM GROUP INC [OMC]
(Last)
(First)
(Middle)
C/O OMNICOM GROUP INC., 437 MADISON AVENUE		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President & CEO DDB Worldwide
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10022		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock, par value $0.15 per share 22,270 (1) (2)
D
 
Common Stock, par value $0.15 per share 371.68
I
By 401(k) Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (right to buy)   (3) 04/12/2012 Common Stock 20,000 $ 93.55 D  
Employee Stock Option (right to buy)   (4) 10/02/2011 Common Stock 20,000 $ 62.35 D  
Employee Stock Option (right to buy)   (3) 04/04/2011 Common Stock 20,000 $ 79.5 D  
Employee Stock Option (right to buy)   (3) 03/08/2010 Common Stock 10,000 $ 78.31 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Brymer Charles E
C/O OMNICOM GROUP INC.
437 MADISON AVENUE
NEW YORK, NY 10022		       President & CEO DDB Worldwide  

Signatures

/s/ Charles E. Brymer 04/27/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Includes 8,920 shares of restricted stock awarded pursuant to Omnicom's equity incentive plan, which are subject to forfeiture.
(2) Includes 736 shares acquired under Omnicom's employee stock purchase plan.
(3) The option is fully exercisable.
(4) 6,666 shares are exercisable at this time. The remaining options become exercisable on October 2, 2007.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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