<ARTICLE>                     5
<LEGEND>
THIS  SCHEDULE  CONTAINS  SUMMARY  FINANCIAL   INFORMATION  EXTRACTED  FROM  THE
CONSOLIDATED   CONDENSED   FINANCIAL   STATEMENTS  OF  OMNICOM  GROUP  INC.  AND
SUBSIDIARIES  AS OF AND FOR  THE  THREE  MONTHS  ENDED  MARCH  31,  1997  AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                   1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                              DEC-31-1997
<PERIOD-END>                                   MAR-31-1997
<CASH>                                             227,960
<SECURITIES>                                        79,791
<RECEIVABLES>                                    1,650,945
<ALLOWANCES>                                        24,411
<INVENTORY>                                              0
<CURRENT-ASSETS>                                 2,361,045
<PP&E>                                             527,868
<DEPRECIATION>                                     305,709
<TOTAL-ASSETS>                                   4,056,557
<CURRENT-LIABILITIES>                            2,497,948
<BONDS>                                            549,471
<PREFERRED-MANDATORY>                                    0
<PREFERRED>                                              0
<COMMON>                                            43,417
<OTHER-SE>                                         749,009
<TOTAL-LIABILITY-AND-EQUITY>                     4,056,557
<SALES>                                                  0
<TOTAL-REVENUES>                                   696,577
<CGS>                                                    0
<TOTAL-COSTS>                                      421,485
<OTHER-EXPENSES>                                   201,102
<LOSS-PROVISION>                                       515
<INTEREST-EXPENSE>                                   7,333
<INCOME-PRETAX>                                     69,641
<INCOME-TAX>                                        28,266
<INCOME-CONTINUING>                                 40,068
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                        40,068
<EPS-PRIMARY>                                         0.50
<EPS-DILUTED>                                         0.50