


                                                                    Exhibit 23.2


                         INDEPENDENT AUDITORS' CONSENT

We consent to the use in this  Registration  Statement of Omnicom  Group Inc. on
Form S-4 of our  report  dated  March 9,  1995  regarding  our audit of Ross Roy
Communications,  Inc. financial statements for the years ended December 31, 1994
and  1993,  appearing  in the  Prospectus,  which  is part of this  Registration
Statement.

We also  consent to the  reference to us under the heading  "Selected  Financial
Data" and "Experts" in such Prospectus.

/s/ DELOITTE & TOUCHE LLP
DELOITTE & TOUCHE LLP
Detroit, Michigan

July 20, 1995

