EXHIBIT 23.3



                          INDEPENDENT AUDITORS' CONSENT

     We  consent  to the use in  this  Annual  Report  on Form  10-K  under  the
Securities  and  Exchange  Act of 1934 of Omnicom  Group Inc. for the year ended
December 31, 1995 of our report dated March 9, 1995  regarding  our audit of the
financial  statements of Ross Roy  Communications,  Inc. as of December 31, 1994
and 1993 and for the two  years in the  period  ended  December  31,  1994  (not
presented separately herein).



                                                         DELOITTE & TOUCHE LLP



Detroit, Michigan
March 25, 1996