EXHIBIT 23.1

                          INDEPENDENT AUDITORS' CONSENT

The Board of Directors
  Omnicom Group Inc.:

      We consent to the incorporation by reference in the Registration Statement
(No. 333-84498) on Form S-3, in the Registration Statement (No. 333-33972) on
Form S-8, in the Registration Statement (No. 333-37634) on Form S-8, in the
Registration Statement (No. 333-41717) on Form S-8, in the Registration
Statement (No. 333-70091) on Form S-8, in the Registration Statement (No.
333-74591) on Form S-8, in the Registration Statement (No. 333-74727) on Form
S-8, in the Registration Statement (No. 333-84349) on Form S-8, in the
Registration Statement (No. 333-90931) on Form S-8, in the Registration
Statement (No. 333-22589) on Form S-3, in the Registration Statement (No.
333-35670) on Form S-3, in the Registration Statement (No. 333-43883) on Form
S-3, in the Registration Statement (No. 333-44481) on Form S-3, in the
Registration Statement (No. 333-44483) on Form S-3, in the Registration
Statement (No. 333-47047) on Form S-3, in the Registration Statement (No.
333-47342) on Form S-3, in the Registration Statement (No. 333-47426) on Form
S-3, in the Registration Statement (No. 333-52828) on Form S-3, in the
Registration Statement (No. 333-55386) on Form S-3 of Omnicom Group Inc. and
subsidiaries of our report dated February 21, 2003, with respect to the
consolidated balance sheet of Omnicom Group Inc. and subsidiaries as of December
31, 2002 and the related consolidated statements of income, shareholders'
equity, and cash flows for the year then ended, and the related 2002 financial
statement schedule, which report appears in the December 31, 2002 annual report
on Form 10-K of Omnicom Group Inc. and subsidiaries.


                                                                    /s/ KPMG LLP


New York, New York
February 21, 2003


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