EXHIBIT 23.1


                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

     As independent public  accountants,  we hereby consent to the incorporation
of our  report  dated  February  20,  1995  included  in this Form 10-K into the
previously filed Registration  Statement File Nos. 33-51493,  2-98222,  33-29375
and  33-37380 on Form S-8 of Omnicom  Group Inc. and into the  previously  filed
Registration  Statement  File  Nos.  33-29375,   33-37380,  33-52385,  33-54110,
33-62976,  33-63200, 33-62978, 33-61852, 33-50409, 33-50267, 33-50271, 33-50269,
33-50257, 33-45881, 33-54851 and 33-55235 on Form S-3 of Omnicom Group Inc.





                                               ARTHUR ANDERSEN LLP



New York, New York
March 28, 1995



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