CONFORMED COPY

                                    FORM 10-Q

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                   Quarterly Report Under Section 13 or 15(d)
                     of the Securities Exchange Act of 1934

For Quarter Ended:  March 31, 1997

Commission file number:  1-10551

                               Omnicom Group Inc.
             (Exact name of registrant as specified in its charter)

           New York                                        13-1514814    
(State or other jurisdiction of                          (IRS Employer
 incorporation or organization)                        Identification No.)

 437 Madison Avenue, New York, New York                      10022     
(Address of principal executive offices)                   (Zip Code)

                                 (212) 415-3600
              (Registrant's telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days.    Yes _X_    No ___


The number of shares of common stock of the Company  issued and  outstanding  at
April 30, 1997 is 81,724,000.




                       OMNICOM GROUP INC. AND SUBSIDIARIES
                                      INDEX

                                                                        Page No.
                                                                        --------

PART I.   FINANCIAL INFORMATION

  Item 1. Financial Statements:

          Consolidated Condensed Balance Sheets -
            March 31, 1997, December 31, 1996 and
            March 31, 1996                                                2

          Consolidated Condensed Statements of Income -
            Three Months Ended March 31, 1997 and 1996                    3

          Consolidated Condensed Statements of Cash Flows -
            Three Months Ended March 31, 1997 and 1996                    4

          Notes to Consolidated Condensed Financial
            Statements                                                    5-8

  Item 2. Management's Discussion of Financial Condition
            and Results of Operations                                     9-12

PART II.  OTHER INFORMATION

  Item 6. Exhibits                                                        13


                                       -1-


                          PART I. FINANCIAL INFORMATION
                          Item 1. Financial Statements
                       OMNICOM GROUP INC. AND SUBSIDIARIES
                     CONSOLIDATED CONDENSED BALANCE SHEETS
                             (Dollars in Thousands)



                   Assets                              March 31,     December 31,    March 31,
                                                          1997           1996           1996
                                                      -----------    -----------    -----------
                                                                                   
Current assets:
  Cash and cash equivalents                           $   227,960    $   510,267    $   195,397
  Investments available-for-sale, at market, 
    which approximates cost                                79,791         12,841         28,503
  Accounts receivable, less allowance for doubtful
    accounts of $24,411, $25,642 and $24,560            1,626,534      1,555,411      1,652,201
  Billable production orders in process                   178,349        156,667        165,870
  Prepaid expenses and other current assets               248,411        189,799        202,818
                                                      -----------    -----------    -----------
       Total current assets                             2,361,045      2,424,985      2,244,789

Furniture, equipment and leasehold improvements, 
  less accumulated depreciation and amortization
  of $305,709, $301,102 and $284,475                      222,159        221,655        212,403
Investments in affiliates                                 231,045        223,918        216,276
Intangibles, less amortization of $201,182, 
  $198,880 and $167,422                                 1,048,982      1,000,312        838,464
Deferred tax benefits                                      78,019         79,828         71,041
Deferred charges and other assets                         115,307        105,245        121,453
                                                      -----------    -----------    -----------
       Total assets                                   $ 4,056,557    $ 4,055,943    $ 3,704,426
                                                      ===========    ===========    ===========
    Liabilities and Shareholders' Equity

Current liabilities:
  Accounts payable                                    $ 1,695,768    $ 2,070,026    $ 1,615,140
  Payable to banks                                         31,394          8,772        172,472
  Other accrued liabilities                               706,700        717,869        616,056
  Accrued taxes on income                                  64,086         66,409         52,272
                                                      -----------    -----------    -----------
       Total current liabilities                        2,497,948      2,863,076      2,455,940

Long term debt                                            549,471        204,744        526,176
Deferred compensation and other liabilities               156,481        124,739        109,819
Minority interests                                         60,231         62,706         60,219

Shareholders' equity:
  Common stock                                             43,417         43,144         40,525
  Additional paid-in capital                              553,402        554,511        397,106
  Retained earnings                                       428,500        419,072        318,253
  Unamortized restricted stock                            (35,210)       (39,445)       (27,424)
  Cumulative translation adjustment                       (22,331)         3,490        (32,856)
  Treasury stock                                         (175,352)      (180,094)      (143,332)
                                                      -----------    -----------    -----------
       Total shareholders' equity                         792,426        800,678        552,272
                                                      -----------    -----------    -----------
       Total liabilities and shareholders' equity     $ 4,056,557    $ 4,055,943    $ 3,704,426
                                                      ===========    ===========    ===========


The accompanying  notes to consolidated  condensed  financial  statements are an
integral part of these balance sheets.


                                       -2-


                       OMNICOM GROUP INC. AND SUBSIDIARIES
                   CONSOLIDATED CONDENSED STATEMENTS OF INCOME
                  (Dollars in Thousands, Except Per Share Data)


                                                   Three Months Ended March 31,
                                                   ----------------------------
                                                      1997               1996
                                                   ---------          ---------
Revenues:                                                      
  Commissions and fees                             $ 696,577          $ 591,601
                                                               
Operating expenses:                                            
  Salaries and related costs                         421,485            358,588
  Office and general expenses                        201,102            171,909
                                                   ---------          ---------
                                                     622,587            530,497
                                                   ---------          ---------
                                                               
Operating profit                                      73,990             61,104
                                                               
Net interest expense:                                          
  Interest and dividend income                        (2,984)            (3,313)
  Interest paid or accrued                             7,333              9,402
                                                   ---------          ---------
       Net interest expense                            4,349              6,089
                                                   ---------          ---------
                                                               
Income before income taxes                            69,641             55,015
                                                               
Income taxes:                                                  
  Federal                                             11,449             10,299
  State and local                                      4,691              2,929
  International                                       12,126              9,043
                                                   ---------          ---------
       Total income taxes                             28,266             22,271
                                                   ---------          ---------
                                                               
Income after income taxes                             41,375             32,744
Equity in affiliates                                   4,144              3,053
Minority interests                                    (5,451)            (4,884)
                                                   ---------          ---------
       Net income                                  $  40,068          $  30,913
                                                   =========          =========
                                                               
Earnings per share:                                            
                                                               
       Primary                                     $    0.50          $    0.41
       Fully diluted                               $    0.50          $    0.41
                                                               
Dividends declared per common share                $    0.20          $   0.175
                                                               

The accompanying  notes to consolidated  condensed  financial  statements are an
integral part of these statements.


                                       -3-



                       OMNICOM GROUP INC. AND SUBSIDIARIES
                 CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
                             (Dollars in Thousands)
 
                                                           Three Months Ended
                                                                 March 31,
                                                           --------------------
                                                              1997       1996
                                                           ---------  ---------
Cash flows from operating activities:
  Net income                                               $  40,068  $  30,913
  Adjustments to reconcile net income to net cash
     used for operating activities:
   Depreciation and amortization of tangible assets           13,204     11,701
   Amortization of intangible assets                           8,882      7,213
   Minority interests                                          5,451      4,884
   Earnings of affiliates in excess of dividends received     (2,331)    (2,186)
   Decrease in deferred tax benefits                           4,747        391
   Provision for losses on accounts receivable                   515        948
   Amortization of restricted shares                           3,900      2,766
   Increase in accounts receivable                           (89,815)  (100,247)
   Increase in billable production                           (25,074)   (31,596)
   Increase in other current assets                          (61,631)   (38,250)
   Decrease in accounts payable                             (342,000)  (252,763)
   Decrease in other accrued liabilities                     (12,216)   (40,383)
   (Decrease)increase in accrued income taxes                 (2,589)     8,584
   Other                                                     (16,780)   (22,142)
                                                           ---------  ---------
       Net cash used for operating activities               (475,669)  (420,167)
                                                           ---------  ---------
Cash flows from investing activities:
  Capital expenditures                                       (17,542)   (13,662)
  Payments for purchases of equity interests in
   subsidiaries and affiliates, net of cash acquired         (69,255)   (28,542)
  Proceeds from sales of equity interests in
   subsidiaries and affiliates                                    54      2,136
  Payments for purchases of investments 
   available-for-sale and other investments                  (65,542)    (6,262)
  Proceeds from sales of investments available-for-sale
   and other investments                                         999        863
                                                           ---------  ---------
       Net cash used for investing activities               (151,286)   (45,467)
                                                           ---------  ---------

Cash flows from financing activities:
  Net borrowings under lines of credit                        16,146    136,163
  Share transactions under employee stock plans                8,420      5,631
  Proceeds from issuance of principal of debt obligations    350,552    247,646
  Dividends and loans to minority stockholders                (5,218)    (3,696)
  Dividends paid                                             (15,846)   (12,825)
  Purchase of treasury shares                                 (4,232)   (26,499)
                                                           ---------  ---------
       Net cash provided by financing activities             349,822    346,420
                                                           ---------  ---------

Effect of exchange rate changes on 
 cash and cash equivalents                                    (5,174)       612
                                                           ---------  ---------
  Net decrease in cash and cash equivalents                 (282,307)  (118,602)
Cash and cash equivalents at beginning of period             510,267    313,999
                                                           ---------  ---------
Cash and cash equivalents at end of period                 $ 227,960  $ 195,397
                                                           =========  =========

Supplemental Disclosures:
   Income taxes paid                                       $  29,328  $  13,350
                                                           =========  =========
   Interest paid                                           $   4,428  $   8,364
                                                           =========  =========

The accompanying  notes to consolidated  condensed  financial  statements are an
integral part of these statements.


                                      -4-


                       OMNICOM GROUP INC. AND SUBSIDIARIES
              NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

1)        The  consolidated  condensed  interim  financial  statements  included
     herein have been prepared by the Company,  without  audit,  pursuant to the
     rules and  regulations of the Securities and Exchange  Commission.  Certain
     information  and  footnote   disclosures  normally  included  in  financial
     statements  prepared  in  accordance  with  generally  accepted  accounting
     principles  have been  condensed  or  omitted  pursuant  to such  rules and
     regulations,  although  the  Company  believes  that  the  disclosures  are
     adequate to make the information presented not misleading.

2)        These  statements  reflect  all  adjustments,   consisting  of  normal
     recurring accruals which, in the opinion of management, are necessary for a
     fair   presentation  of  the   information   contained   therein.   Certain
     reclassifications  have been made to the March 31, 1996 reported amounts to
     conform them with the March 31, 1997 and December 31, 1996 presentation. It
     is suggested that these consolidated condensed financial statements be read
     in conjunction with the consolidated financial statements and notes thereto
     included  in the  Company's  annual  report on Form 10-K for the year ended
     December 31, 1996.

3)        Results  of  operations  for  interim   periods  are  not  necessarily
     indicative of annual results.


                                      -5-


                       OMNICOM GROUP INC. AND SUBSIDIARIES
        NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------

4)        Primary  earnings per share is based upon the weighted  average number
     of common  shares and common  share  equivalents  outstanding  during  each
     period.  Fully  diluted  earnings  per share is based on the above,  and if
     dilutive, adjusted for the assumed conversion of convertible debentures and
     the assumed  increase in net income for the after tax interest cost of such
     debentures.   At  March  31,  1997,  the  4.25%  Convertible   Subordinated
     Debentures had been  outstanding  since January 3, 1997. At March 31, 1996,
     the   4.5%/6.25%   Step-Up   Convertible   Subordinated   Debentures   were
     outstanding.  The number of shares used in the  computations of primary and
     fully diluted earnings per share were as follows:

                                                           Three Months
                                                          Ended March 31,
                                                    ---------------------------
                                                       1997             1996
                                                    ----------       ----------
     Primary EPS Computation                        80,598,700       75,192,200
     Fully Diluted EPS Computation                  80,663,800       80,697,400


          For  purposes of  computing  fully  diluted  earnings per share on net
     income for the three  months  ended March 31,  1997,  the  Company's  4.25%
     Convertible  Subordinated  Debentures were not reflected in the computation
     as their inclusion would have been anti-dilutive.


                                      -6-


                       OMNICOM GROUP INC. AND SUBSIDIARIES
        NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------

          In February 1997, the FASB issued SFAS No. 128,  "Earnings per Share".
     Under SFAS No. 128, the  presentation of Primary and Fully Diluted Earnings
     Per  Share  will be  replaced  by Basic and  Diluted  Earnings  Per  Share.
     Adoption of SFAS No. 128 is required for periods  ending after December 15,
     1997, at which time  restatement  for prior periods will be necessary.  Had
     the  provisions  of SFAS No. 128 been in effect as of March 31,  1997,  the
     Company would have reported the following earnings per share information:

                                                         Three Months
                                                        Ended March 31,
                                                   -----------------------
                                                    1997              1996
                                                   -----             -----
     Earnings per share:

     Basic                                         $0.50             $0.42
     Diluted                                       $0.50             $0.41

5)        On February 28, 1997, the Company  exchanged  544,487 shares of common
     stock for all of the  outstanding  shares of Cline Davis & Mann,  Inc.  and
     Gavin  Anderson  &  Company  (Japan),  Inc.  These  combinations  have been
     accounted   for  as  poolings  of  interests.   The  assets,   liabilities,
     shareholders'  equity and results of operations  of the companies  acquired
     are not, either  individually or in the aggregate,  material to the Company
     and, therefore, the Company's prior year financial statements have not been
     restated.


                                      -7-


                       OMNICOM GROUP INC. AND SUBSIDIARIES
        NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------

6)        On May 31,  1996,  the Company  exchanged  1,206,853  shares of common
     stock for all of the  outstanding  voting shares of Ketchum  Communications
     Holdings, Inc. The combination was accounted for as a pooling of interests.
     Accordingly,  the March 31, 1996 balance  sheet,  results of operations and
     cash flows have been restated to reflect the  combination  as of January 1,
     1996.

7)        On  January  3,  1997,  the  Company  issued   $218,500,000  of  4.25%
     Convertible  Subordinated Debentures with a scheduled maturity in 2007. The
     debentures are convertible into common stock of the Company at a conversion
     price of  $63.00  per  share  subject  to  adjustment  in  certain  events.
     Debenture  holders  have the right to  require  the  Company  to redeem the
     debentures  on  January  3,  2003  at a price  of  112.418%,  or  upon  the
     occurrence of a Fundamental Change, as defined in the indenture  agreement,
     at the prevailing  redemption price. The Company may redeem the debentures,
     as a whole or in part, on or after  December 29, 2000 initially at 108.324%
     and at increasing  prices  thereafter to 112.418% until January 2, 2003 and
     100%  thereafter.  Unless the debentures are redeemed,  repaid or converted
     prior  thereto,  the  debentures  will  mature on  January 3, 2007 at their
     principal amount.  The proceeds of this issuance are being used for general
     corporate purposes including working capital.


                                      -8-


             Item 2. MANAGEMENT'S DISCUSSION OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
- --------------------------------------------------------------------------------

Results of Operations

First Quarter 1997 Compared to First Quarter 1996

     Consolidated  worldwide  revenues from commission and fee income  increased
17.7% in the  first  quarter  of 1997  compared  to the first  quarter  of 1996.
Consolidated  domestic revenues  increased 18.2% in the first quarter of 1997 to
$381.7  million  compared  to  $322.9  million  in the  first  quarter  of 1996.
Consolidated international revenues increased 17.2% in the first quarter of 1997
to $314.9  million  compared  to $268.7  million  in the first  quarter of 1996.
Absent the effect of the net acquisitions of subsidiary  companies and movements
in  international  currency  exchange  rates,  consolidated  worldwide  revenues
increased  13.4% in the first  quarter of 1997 as compared to the same period in
1996.

     Operating expenses increased 17.4% in the first quarter of 1997 as compared
to the first  quarter  of 1996.  Excluding  the  effect  of the net  acquisition
activity and movements in international currency exchange rates mentioned above,
operating  expenses  increased  12.9% over 1996 levels.  This increase  reflects
normal salary increases and growth in client service expenditures to support the
increased revenue base.


                                      -9-


                 MANAGEMENT'S DISCUSSION OF FINANCIAL CONDITION
                      AND RESULTS OF OPERATIONS (CONTINUED)
- --------------------------------------------------------------------------------

     Net interest expense decreased by $1.7 million in the first quarter of 1997
as compared to the same period in 1996. This decrease  primarily  reflects lower
average interest rates on borrowings.

     Pretax  profit margin was 10.0% in the first quarter of 1997 as compared to
9.3% in the same period in 1996.  Operating margin,  which excludes interest and
dividend income and interest expense,  was 10.6% in the first quarter of 1997 as
compared to 10.3% in the same period in 1996.

     The  effective  income  tax rate of 40.6% in the first  quarter of 1997 was
comparable  to the  effective  income tax rate of 40.5% in the first  quarter of
1996.

     The  increase in equity in  affiliates  is  indicative  of greater  profits
earned by companies in which the Company owns less than a 50% equity interest.

     The  increase  in minority  interest  expense is  primarily  due to greater
earnings by companies where minority interests exist.

     Net income  increased 29.6% in the first quarter of 1997 as compared to the
same period in 1996.  Absent the effect of net  acquisitions  and  movements  in
international  currency  exchange rates, net income increased 24.2% in the first
quarter of 1997 as compared to the first quarter of 1996.


                                      -10-


                 MANAGEMENT'S DISCUSSION OF FINANCIAL CONDITION
                      AND RESULTS OF OPERATIONS (CONTINUED)
- --------------------------------------------------------------------------------

Capital Resources and Liquidity

     Cash and cash  equivalents  at March 31, 1997  decreased to $228.0  million
from $510.3 million at December 31, 1996. The  relationship  between payables to
the media and suppliers  and  receivables  from  clients,  at March 31, 1997, is
consistent with industry norms.

     The Company maintains relationships with a number of banks worldwide, which
have extended unsecured  committed lines of credit in amounts sufficient to meet
the Company's  cash needs.  At March 31, 1997, the Company had $505.1 million in
such  unsecured  committed  lines  of  credit,  comprised  of a  $360.0  million
revolving credit  agreement  expiring June 30, 2001, and $145.1 million in lines
of credit,  principally  outside of the United States.  Of the $505.1 million in
unsecured committed lines, $363.2 million remained available at March 31, 1997.

     On January 3, 1997, the Company issued  $218,500,000  of 4.25%  Convertible
Subordinated  Debentures  with a scheduled  maturity in 2007. The debentures are
convertible into common stock of the Company at a conversion price of $63.00 per
share subject to adjustment in certain events.  Debenture holders have the right
to require the Company to redeem the debentures on January 3, 2003 at a price of
112.418%,  or upon the  occurrence  of a Fundamental  Change,  as defined in the
indenture agreement,  at the prevailing redemption price. The Company may redeem
the debentures, as a whole or in part, on or after December 29, 2000


                                      -11-


                 MANAGEMENT'S DISCUSSION OF FINANCIAL CONDITION
                      AND RESULTS OF OPERATIONS (CONTINUED)
- --------------------------------------------------------------------------------

initially at 108.324% and at  increasing  prices  thereafter  to 112.418%  until
January 2, 2003 and 100% thereafter.  Unless the debentures are redeemed, repaid
or converted  prior thereto,  the  debentures  will mature on January 3, 2007 at
their principal amount. The proceeds of this issuance are being used for general
corporate purposes including working capital.

     Management  believes the aggregate lines of credit available to the Company
plus cash flows from  operations  will be adequate  to support  its  anticipated
requirements.


                                      -12-


                           PART II. OTHER INFORMATION

Item 6. Exhibits

          Exhibit Number            Description of Exhibit
          --------------            ----------------------

             27                     Financial Data Schedule (filed
                                    in electronic format only)

SIGNATURES

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.

                                     Omnicom Group Inc.
                                       (Registrant)

Date  May 12, 1997                   /s/ Fred J. Meyer
                                    --------------------------
                                     Fred J. Meyer
                                     Chief Financial Officer
                                    (Principal Financial
                                     Officer)


Date  May 12, 1997                   /s/ Jonathan E. Ramsden
                                    --------------------------
                                     Jonathan E. Ramsden
                                     Controller
                                    (Principal Accounting
                                     Officer)


                                      -13-