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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">Washington, D.C. 20549</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 6pt 0 0; text-align: center"><B>FORM S-8</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">REGISTRATION STATEMENT</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">under</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">the Securities Act of 1933</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 6pt 0 0; text-align: center"><B>Omnicom Group Inc. </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: center">(Exact name of registrant as specified
in its charter)</P>

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    <TD STYLE="width: 32%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>New York</B><BR>
        <FONT STYLE="font: 8pt Times New Roman, Times, Serif">(State or other jurisdiction</FONT><BR>
        <FONT STYLE="font: 8pt Times New Roman, Times, Serif">of incorporation or organization)</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD>
    <TD STYLE="width: 36%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>4813</B></P>
        <P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><I>(Primary Standard Industrial<BR>
        Classification Number)</I></P></TD>
    <TD STYLE="width: 32%; padding-right: 5.4pt; padding-left: 5.4pt; font: 10pt Times New Roman, Times, Serif; text-align: center"><B>13-1514814</B><BR>
<FONT STYLE="font-size: 8pt">(I.R.S. Employer</FONT><BR>
<FONT STYLE="font-size: 8pt">Identification No.)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>437 Madison Avenue</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>New York, NY 10022 </B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>(212) 415-3600</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: left; text-indent: 0in">(Address of registrant&#8217;s
        principal executive offices)</P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Omnicom Group Inc. 2013 Incentive Award Plan
</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">(Full
title of Plan)</FONT><U> </U></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

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        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Copy to:</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Michael J. O&#8217;Brien, Esq.</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Senior Vice President, General Counsel and
        Secretary</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Omnicom Group Inc.</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>437 Madison Avenue</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>New York, NY 10022 </B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>(212) 415-3600</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P></TD>
    <TD STYLE="width: 50%; padding-right: 0.25in; padding-left: 0.25in">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Copy to:<BR>
        Joel H. Trotter, Esq.</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Latham &amp; Watkins LLP</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>555 Eleventh Street, N.W.</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Washington, D.C. 20004</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>(202) 637-2200</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><BR>
        <BR>
        </B></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; padding-top: 4pt; padding-right: 0.25in; padding-left: 0.25in; text-align: center">(Name, address, including zip code, and telephone number, including area code, of agent for service)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of &#8220;large accelerated
filer,&#8221; &#8220;accelerated filer&#8221; and &#8220;smaller reporting company&#8221; in Rule 12b-2 of the Exchange Act.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"></P>

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    <TD STYLE="width: 3%; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="width: 68%; padding-right: 5.4pt; padding-left: 5.4pt">Large accelerated filer&nbsp;&nbsp;[X]</TD>
    <TD STYLE="width: 29%; padding-right: 5.4pt; padding-left: 5.4pt">Accelerated filer&nbsp;&nbsp;[&nbsp;&nbsp;]</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">Non-accelerated filer&nbsp;&nbsp;[&nbsp;&nbsp;&nbsp;]&nbsp;&nbsp;(Do not check if a smaller reporting company)</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">Smaller reporting company&nbsp;&nbsp;[&nbsp;&nbsp;]</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 6pt 0 0; text-align: center"><B>CALCULATION OF REGISTRATION FEE</B></P>

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    <TD STYLE="width: 25%; border-top: windowtext 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center">Title of Each Class<BR>
        of Securities to<BR>
        be Registered</P></TD>
    <TD STYLE="width: 19%; border-top: windowtext 1pt solid; font: 9pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><BR>
<FONT STYLE="font-size: 9pt">Amount</FONT><BR>
<FONT STYLE="font-size: 9pt">&nbsp;to be</FONT><BR>
<FONT STYLE="font-size: 9pt">Registered <SUP>(1)</SUP></FONT></TD>
    <TD STYLE="width: 18%; border-top: windowtext 1pt solid; font: 9pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><BR>
<FONT STYLE="font-size: 9pt">Proposed</FONT><BR>
<FONT STYLE="font-size: 9pt">Maximum</FONT><BR>
<FONT STYLE="font-size: 9pt">Offering Price</FONT><BR>
<FONT STYLE="font-size: 9pt">Per Share</FONT><SUP>(2)</SUP><FONT STYLE="font-size: 9pt"> </FONT></TD>
    <TD STYLE="width: 20%; border-top: windowtext 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 9pt">Proposed</FONT><BR>
        <FONT STYLE="font-size: 9pt">Maximum</FONT><BR>
        <FONT STYLE="font-size: 9pt">Aggregate Offering</FONT><BR>
        <FONT STYLE="font-size: 9pt">Price</FONT><SUP>(2)</SUP><FONT STYLE="font-size: 9pt"> </FONT></P></TD>
    <TD STYLE="width: 18%; border-top: windowtext 1pt solid; font: 9pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><BR>
<FONT STYLE="font-size: 9pt">Amount of</FONT><BR>
<FONT STYLE="font-size: 9pt">Registration</FONT><BR>
<FONT STYLE="font-size: 9pt">Fee</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top; border-top: windowtext 1pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; text-align: center">Common Stock,<BR>
$0.15 par value </TD>
    <TD STYLE="border-top: windowtext 1pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; text-align: center">33,040,000 shares</TD>
    <TD STYLE="border-top: windowtext 1pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; text-align: center">$63.02</TD>
    <TD STYLE="border-top: windowtext 1pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; text-align: center">$2,082,180,800</TD>
    <TD STYLE="border-top: windowtext 1pt solid; font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; text-align: center">$284,010.00</TD></TR>
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<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.3in">(1)</TD><TD STYLE="text-align: justify">The registration statement registers the issuance of 33,040,000 shares of common stock, which are
issuable pursuant to the awards to be granted under the Omnicom Group Inc. 2013 Incentive Award Plan, and adjustments to shares
to account for any changes in capitalization such as, a stock split, stock dividend, or similar transaction involving the registrant&#8217;s
common stock, in accordance with Rule 416(a) under the Securities Act of 1933, as amended (the &#8220;<U>Securities Act</U>&#8221;).</TD></TR></TABLE>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.3in">(2)</TD><TD STYLE="text-align: justify">Estimated solely for calculating the amount of the registration fee, pursuant to paragraphs (c)
and (h) of Rule 457 of the General Rules and Regulations under the Securities Act, on the basis of the average of the high and
low sale prices of such securities on the New York Stock Exchange on May 15, 2013, within five business days prior to filing.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; border-top: Black 0.75pt solid">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 10pt; text-align: center"><B>PART I</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in">The information called for in Part I of Form
S-8 is not being filed with or included in this Form S-8 (by incorporation by reference or otherwise) in accordance with the rules
and regulations of the Securities and Exchange Commission (the &#8220;Commission&#8221;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 10pt; text-align: center"><B>PART II</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 10pt; text-align: justify"><B>Item 3.&#9;&nbsp;&nbsp;Incorporation of Documents
by Reference</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">The following documents
filed with the Commission by us are incorporated as of their respective dates in this Registration Statement by reference:</P>

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<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD STYLE="text-align: justify">The Company&#8217;s Annual Report on Form 10-K for the year ended December 31, 2012, including
all material incorporated by reference therein;</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD STYLE="text-align: justify">The Company&#8217;s Quarterly Report on Form 10-Q for the quarter ended March 31, 2013, including
all material incorporated by reference therein; and</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD STYLE="text-align: justify">The description of the Company&#8217;s common stock contained in the Registration Statement on
Form S-3 filed with the Commission on October 19, 2012 (filed number 333-184510), including any subsequently filed amendments and
reports updating such description.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">All documents filed
by us pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;),
subsequent to the date of this registration statement and prior to the filing of a post-effective amendment which indicates that
all securities offered have been sold or which deregisters all securities then remaining unsold shall be deemed incorporated by
reference in this Registration Statement and are a part hereof from the date of filing such documents; except as to any portion
of any future annual or quarterly report to stockholders or document or current report furnished under current Items 2.02 or 7.01
of Form 8-K that is not deemed filed under such provisions. Any statement contained in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the
extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated
by reference herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except
as so modified or superseded, to constitute a part of this Registration Statement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 10pt; text-align: justify"><B>Item 4.&#9;&nbsp;&nbsp;Description of Securities</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">Not required to
be filed with this registration.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 10pt; text-align: justify"><B>Item 5.&#9;&nbsp;&nbsp;Interests of Named Experts
and Counsel</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 10pt; text-align: justify"><B>Item 6.&#9;&nbsp;&nbsp;Indemnification of Directors
and Officers</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in">The Company&#8217;s certificate of incorporation
contains a provision limiting the liability of directors to acts or omissions determined by a judgment or other final adjudication
to have been in bad faith, involving intentional misconduct or a knowing violation of the law, or resulting in personal gain to
which the director was not legally entitled. The Company&#8217;s bylaws provide that an officer or director will be indemnified
against any costs or liabilities, including attorneys&#8217; fees and amounts paid in settlement with the Company&#8217;s consent,
in connection with any claim, action or proceeding to the fullest extent permitted by the New York Business Corporation Law.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in">Section 722(a) of the New York Business Corporation
Law provides that a corporation may indemnify any officer or director made, or threatened to be made, a party to an action other
than one by or in the right of the corporation, including an action by or in the right of any other corporation or other enterprise
that any director or officer of the corporation served in any capacity at the request of the corporation, because he or she was
a director or</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">officer of the corporation, or served such other corporation or
other enterprise in any capacity, against judgments, fines, amounts paid in settlement and reasonable expenses, including attorneys&#8217;
fees, actually and necessarily incurred as a result of such action, or any appeal therein, if such director or officer acted in
good faith for a purpose he or she reasonably believed to be in, or in the case of service for any other corporation or other enterprise,
not opposed to, the best interests of the corporation and, in criminal actions, had no reasonable cause to believe that his conduct
was unlawful.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in">Section 722(c) of the New York Business Corporation
Law provides that a corporation may indemnify any officer or director made, or threatened to be made, a party to an action by or
in the right of the corporation by reason of the fact that he or she is or was an officer or director of the corporation, or is
or was serving at the request of the corporation as a director or officer of any other corporation or other enterprise, against
amounts paid in settlement and reasonable expenses, including attorneys&#8217; fees, actually and necessarily incurred by him or
her in connection with the defense or settlement of such action, or in connection with an appeal therein, if such director or officer
acted in good faith for a purpose which he or she reasonably believed to be in, or, in the case of service for another corporation
or other enterprise, not opposed to, the best interests of the corporation. The corporation may not, however, indemnify any officer
or director pursuant to Section 722(c) in respect of (1) a threatened action or a pending action that is settled or otherwise disposed
of or (2) any claim, issue or matter for which the person has been adjudged to be liable to the corporation, unless and only to
the extent that the court in which the action was brought or, if no action was brought, any court of competent jurisdiction, determines
upon application that the person is fairly and reasonably entitled to indemnity for that portion of the settlement and expenses
as the court deems proper.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in">Section 723 of the New York Business Corporation
Law provides that an officer or director who has been successful on the merits or otherwise in the defense of a civil or criminal
action of the character set forth in Section 722 is entitled to indemnification as permitted in such Section. Section 724 of the
New York Business Corporation Law permits a court to award the indemnification required by Section 722.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in">The Company has entered into agreements with
its directors and certain officers to indemnify them for liabilities or costs arising out of any alleged or actual breach of duty,
neglect, errors or omissions while serving as a director. The Company also maintains and pays premiums for directors&#8217; and
officers&#8217; liability insurance policies.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 10pt; text-align: justify"><B>Item 7.&#9;&nbsp;&nbsp;Exemption from Registration
Claimed</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 10pt; text-align: justify"><B>Item 8.&#9;&nbsp;&nbsp;Exhibits</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-family: Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 10%; padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="color: black"><U>Exhibit </U></FONT></TD>
    <TD STYLE="width: 90%; padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="color: black"><U>Description</U></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="color: black">4.1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="color: black">Restated Certificate of Incorporation of Omnicom Group Inc. (filed as Exhibit 3.1 to our Quarterly Report on Form 10-Q for the quarter ended September 30, 2011 and incorporated herein by reference).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="color: black">4.2</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="color: black">Bylaws of the Company, as amended and restated on May 22, 2012 (filed as Exhibit 3.2 to our Current Report on Form 8-K dated May 24, 2012 and incorporated herein by reference).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">5.1</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="color: black">Opinion of Counsel (filed herewith).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="color: black">10.1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="color: black">Omnicom Group Inc. 2013 </FONT>Incentive Award Plan <FONT STYLE="color: black">(filed with the Company's Definitive Proxy Statement, filed on April 11, 2013, and incorporated herein by reference).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="color: black">23.1</FONT></TD>
    <TD STYLE="font: 10pt Arial Unicode MS; padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; color: black">Consent of KPMG LLP (filed herewith).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="color: black">23.2</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="color: black">Consent of Counsel (included in Exhibit 5.1).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="color: black">24.1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="color: black">Power of Attorney </FONT>(included on signature page of this registration statement).</TD></TR>
</TABLE>



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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 10pt; text-align: justify"><B>Item 9.&#9;&nbsp;&nbsp;Undertakings</B></P>

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<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in">(a)</TD><TD STYLE="text-align: justify">The undersigned registrant hereby undertakes:</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in">(1)</TD><TD STYLE="text-align: justify">To file, during any period in which offers or sales are being made, a post-effective amendment
to this registration statement:</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1.5in"></TD><TD STYLE="width: 0.5in">(i)</TD><TD STYLE="text-align: justify">To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;</TD></TR></TABLE>

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<TD STYLE="width: 1.5in"></TD><TD STYLE="width: 0.5in">(ii)</TD><TD STYLE="text-align: justify">To reflect in the prospectus any facts or events arising after the effective date of the registration
statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental
change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume
of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation
from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission
pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum
aggregate offering price set forth in the &#8220;Calculation of Registration Fee&#8221; table in the effective registration statement;
and</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1.5in"></TD><TD STYLE="width: 0.5in">(iii)</TD><TD STYLE="text-align: justify">To include any material information with respect to the plan of distribution not previously disclosed
in the registration statement or any material change to such information in the registration statement;</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">provided, however,
that paragraphs (a)(1)(i) and (a)(1)(ii) shall not apply to information required to be included in a post-effective amendment by
those paragraphs and contained in reports filed with or furnished to the Commission by the registrant pursuant to section 13 or
section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in this Registration Statement.</P>

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<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in">(2)</TD><TD STYLE="text-align: justify">That, for the purpose of determining any liability under the Securities Act of 1933, each such
post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial <I>bona fide</I> offering thereof.</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in">(3)</TD><TD STYLE="text-align: justify">To remove from registration by means of a post-effective amendment any of the securities being
registered which remain unsold at the termination of the offering.</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in">(b)</TD><TD STYLE="text-align: justify">The undersigned registrant hereby undertakes that, for purposes of determining any liability under
the Securities Act of 1933, each filing of the registrant&#8217;s annual report pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan&#8217;s annual report pursuant
to section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall
be deemed to be a new registration statement relating to the securities offered herein, and the offering of such securities at
that time shall be deemed to be the initial <I>bona fide</I> offering thereof.</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in">(c)</TD><TD STYLE="text-align: justify">Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted
to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as
expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other
than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant
in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection
with the securities being</TD></TR></TABLE>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt 1in; text-align: justify">registered, the registrant will,
unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction
the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final
adjudication of such issue.</P>


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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: center">SIGNATURES</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">Pursuant to the
requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of New York, State of New York, on this 21st day of May, 2013.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 4in">OMNICOM GROUP, INC.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 4in"><BR>
<BR>
By:&#9;&nbsp;<U>/s/ Randall J. Weisenburger&#9;</U></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 4in;4">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Randall J. Weisenburger</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 4in;4">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Executive Vice President and Chief
Financial Officer</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 4in">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: center">POWER OF ATTORNEY</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">Each person whose
signature appears below hereby authorizes and appoints John D. Wren and Michael J. O&#8217;Brien, and each of them, with full power
to act without the other, as attorney-in-fact and agent, with full power of substitution and resubstitution, to sign on his or
her behalf, individually and in the capacities stated below, and to file any and all amendments, including post-effective amendments,
to this Registration Statement and other documents in connection therewith, with the Commission, granting to said attorney-in-fact
and agent full power and authority to perform any other act on behalf of the undersigned required to be done in the premises.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">Pursuant to the
requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities
and on the dates indicated.</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 36%; padding-right: 5.4pt; padding-left: 5.4pt; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><U>Signature</U></FONT></TD>
    <TD STYLE="width: 42%; padding-right: 5.4pt; padding-left: 5.4pt; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><U>Title</U></FONT></TD>
    <TD STYLE="width: 22%; padding-right: 5.4pt; padding-left: 5.4pt; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><U>Date</U></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          Bruce Crawford&#9;</FONT></P>

       </TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Chairman
    and Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Bruce Crawford</FONT><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          John D. Wren&nbsp;</FONT></P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">President,
        Chief Executive Officer and Director</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">John
                                                          D. Wren</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><I>(Principal
    Executive Officer)</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          Randall J. Weisenburger&#9;&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Executive
    Vice President and Chief Financial Officer </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Randall
                                                          J. Weisenburger</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><I>(Principal
    Financial Officer)</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          Philip J. Angelastro&#9;&nbsp;</FONT></P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Senior
        Vice President Finance and Controller</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Philip
                                                          J. Angelastro</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><I>(Principal
    Accounting Officer)</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          Alan R. Batkin&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Alan
                                                          R. Batkin</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          Mary C. Choksi&#9;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Mary
                                                          C. Choksi</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          Robert Charles Clark&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Robert
                                                          Charles Clark</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          Leonard S. Coleman, Jr.&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Leonard
                                                          S. Coleman, Jr.</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          Errol M. Cook&#9;&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Errol M. Cook</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 36%; padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                                      Susan S. Denison&#9;&nbsp;</FONT></P></TD>
    <TD STYLE="width: 42%; padding-right: 5.4pt; padding-left: 5.4pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
    <TD STYLE="width: 22%; padding-right: 5.4pt; padding-left: 5.4pt; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Susan
                                                          S. Denison</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          Michael A. Henning&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Michael
                                                          A. Henning</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          John R. Purcell&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">John
                                                          R. Purcell</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          Linda Johnson Rice&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Linda
                                                          Johnson Rice</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/
                                                          Gary L. Roubos&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May
    21, 2013</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Gary
                                                          L. Roubos</FONT></P>
                                                          <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

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    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0 0 6pt; text-align: center"><B>&nbsp;</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0 0 6pt; text-align: center"><B>EXHIBIT INDEX</B></P>
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0 0 6pt; text-align: center"><B>&nbsp;</B></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 10%; padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt; text-align: center"><FONT STYLE="font-size: 9pt; color: black"><U>Exhibit </U></FONT></TD>
    <TD STYLE="width: 90%; padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt"><FONT STYLE="font-size: 9pt; color: black"><U>Description</U></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt; text-align: center"><FONT STYLE="font-size: 9pt; color: black">4.1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt"><FONT STYLE="font-size: 9pt; color: black">Restated Certificate of Incorporation of Omnicom Group Inc. (filed as Exhibit 3.1 to our Quarterly Report on Form 10-Q for the quarter ended September 30, 2011 and incorporated herein by reference).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt; text-align: center"><FONT STYLE="font-size: 9pt; color: black">4.2</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt"><FONT STYLE="font-size: 9pt; color: black">Bylaws of the Company, as amended and restated on May 22, 2012 (filed as Exhibit 3.2 to our Current Report on Form 8-K dated May 24, 2012 and incorporated herein by reference).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt; text-align: center"><FONT STYLE="font-size: 9pt">5.1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt"><FONT STYLE="font-size: 9pt; color: black">Opinion of Counsel (filed herewith).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt; text-align: center"><FONT STYLE="font-size: 9pt; color: black">10.1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt"><FONT STYLE="font-size: 9pt; color: black">Omnicom Group Inc. 2013 </FONT><FONT STYLE="font-size: 9pt">Incentive Award Plan <FONT STYLE="color: black">(filed with the Company's Definitive Proxy Statement, filed on April 11, 2013, and incorporated herein by reference).</FONT></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt; text-align: center"><FONT STYLE="font-size: 9pt; color: black">23.1</FONT></TD>
    <TD STYLE="font: 9pt Arial Unicode MS; padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt"><FONT STYLE="font: 9pt Times New Roman, Times, Serif; color: black">Consent of KPMG LLP (filed herewith).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt; text-align: center"><FONT STYLE="font-size: 9pt; color: black">23.2</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt"><FONT STYLE="font-size: 9pt; color: black">Consent of Counsel (included in Exhibit 5.1).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt; text-align: center"><FONT STYLE="font-size: 9pt; color: black">24.1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 6pt; padding-left: 5.4pt; font-size: 9pt"><FONT STYLE="font-size: 9pt; color: black">Power of Attorney </FONT><FONT STYLE="font-size: 9pt">(included on signature page of this registration statement).</FONT></TD></TR>
</TABLE>


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[{"type": "S-8", "sequence": "1", "filename": "e53772s8.htm", "description": "REGISTRATION STATEMENT", "secsgml_size_bytes": 68062}]
{"company-data": {"conformed-name": "OMNICOM GROUP INC.", "cik": "0000029989", "assigned-sic": "7311", "irs-number": "131514814", "state-of-incorporation": "NY", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-188732", "film-number": "13862309"}, "business-address": {"street1": "437 MADISON AVE", "city": "NEW YORK", "state": "NY", "zip": "10022", "phone": "2124153600"}, "mail-address": {"street1": "437 MADISON AVE", "city": "NEW YORK", "state": "NY", "zip": "10022"}, "former-company": [{"former-conformed-name": "OMNICOM GROUP INC", "date-changed": "19920703"}, {"former-conformed-name": "DOYLE DANE BERNBACH GROUP INC", "date-changed": "19861117"}, {"former-conformed-name": "DOYLE DANE BERNBACH INTERNATIONAL INC", "date-changed": "19850604"}]}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
under
the Securities Act of 1933
Omnicom Group Inc.
(Exact name of registrant as specified
in its charter)
New York
(State or other jurisdiction
of incorporation or organization)
4813
(Primary Standard Industrial
Classification Number)
13-1514814
(I.R.S. Employer
Identification No.)
437 Madison Avenue
New York, NY 10022
(212) 415-3600
(Address of registrant's
        principal executive offices)
Omnicom Group Inc. 2013 Incentive Award Plan
(Full
title of Plan)
Copy to:
Michael J. O'Brien, Esq.
Senior Vice President, General Counsel and
        Secretary
Omnicom Group Inc.
437 Madison Avenue
New York, NY 10022
(212) 415-3600
Copy to:
Joel H. Trotter, Esq.
Latham & Watkins LLP
555 Eleventh Street, N.W.
Washington, D.C. 20004
(202) 637-2200
(Name, address, including zip code, and telephone number, including area code, of agent for service)
Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated
filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer  [X]
Accelerated filer  [  ]
Non-accelerated filer  [   ]  (Do not check if a smaller reporting company)
Smaller reporting company  [  ]
CALCULATION OF REGISTRATION FEE
Title of Each Class
of Securities to
be Registered
Amount
to be
Registered
(1)
Proposed
Maximum
Offering Price
Per Share
(2)
Proposed
Maximum
Aggregate Offering
Price
(2)
Amount of
Registration
Fee
Common Stock,
$0.15 par value
33,040,000 shares
$63.02
$2,082,180,800
$284,010.00
(1)
The registration statement registers the issuance of 33,040,000 shares of common stock, which are
issuable pursuant to the awards to be granted under the Omnicom Group Inc. 2013 Incentive Award Plan, and adjustments to shares
to account for any changes in capitalization such as, a stock split, stock dividend, or similar transaction involving the registrant's
common stock, in accordance with Rule 416(a) under the Securities Act of 1933, as amended (the "
Securities Act
").
(2)
Estimated solely for calculating the amount of the registration fee, pursuant to paragraphs (c)
and (h) of Rule 457 of the General Rules and Regulations under the Securities Act, on the basis of the average of the high and
low sale prices of such securities on the New York Stock Exchange on May 15, 2013, within five business days prior to filing.
PART I
The information called for in Part I of Form
S-8 is not being filed with or included in this Form S-8 (by incorporation by reference or otherwise) in accordance with the rules
and regulations of the Securities and Exchange Commission (the "Commission").
PART II
Item 3.	  Incorporation of Documents
by Reference
The following documents
filed with the Commission by us are incorporated as of their respective dates in this Registration Statement by reference:
·
The Company's Annual Report on Form 10-K for the year ended December 31, 2012, including
all material incorporated by reference therein;
·
The Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2013, including
all material incorporated by reference therein; and
·
The description of the Company's common stock contained in the Registration Statement on
Form S-3 filed with the Commission on October 19, 2012 (filed number 333-184510), including any subsequently filed amendments and
reports updating such description.
All documents filed
by us pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"),
subsequent to the date of this registration statement and prior to the filing of a post-effective amendment which indicates that
all securities offered have been sold or which deregisters all securities then remaining unsold shall be deemed incorporated by
reference in this Registration Statement and are a part hereof from the date of filing such documents; except as to any portion
of any future annual or quarterly report to stockholders or document or current report furnished under current Items 2.02 or 7.01
of Form 8-K that is not deemed filed under such provisions. Any statement contained in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the
extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated
by reference herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except
as so modified or superseded, to constitute a part of this Registration Statement.
Item 4.	  Description of Securities
Not required to
be filed with this registration.
Item 5.	  Interests of Named Experts
and Counsel
Not applicable.
Item 6.	  Indemnification of Directors
and Officers
The Company's certificate of incorporation
contains a provision limiting the liability of directors to acts or omissions determined by a judgment or other final adjudication
to have been in bad faith, involving intentional misconduct or a knowing violation of the law, or resulting in personal gain to
which the director was not legally entitled. The Company's bylaws provide that an officer or director will be indemnified
against any costs or liabilities, including attorneys' fees and amounts paid in settlement with the Company's consent,
in connection with any claim, action or proceeding to the fullest extent permitted by the New York Business Corporation Law.
Section 722(a) of the New York Business Corporation
Law provides that a corporation may indemnify any officer or director made, or threatened to be made, a party to an action other
than one by or in the right of the corporation, including an action by or in the right of any other corporation or other enterprise
that any director or officer of the corporation served in any capacity at the request of the corporation, because he or she was
a director or
officer of the corporation, or served such other corporation or
other enterprise in any capacity, against judgments, fines, amounts paid in settlement and reasonable expenses, including attorneys'
fees, actually and necessarily incurred as a result of such action, or any appeal therein, if such director or officer acted in
good faith for a purpose he or she reasonably believed to be in, or in the case of service for any other corporation or other enterprise,
not opposed to, the best interests of the corporation and, in criminal actions, had no reasonable cause to believe that his conduct
was unlawful.
Section 722(c) of the New York Business Corporation
Law provides that a corporation may indemnify any officer or director made, or threatened to be made, a party to an action by or
in the right of the corporation by reason of the fact that he or she is or was an officer or director of the corporation, or is
or was serving at the request of the corporation as a director or officer of any other corporation or other enterprise, against
amounts paid in settlement and reasonable expenses, including attorneys' fees, actually and necessarily incurred by him or
her in connection with the defense or settlement of such action, or in connection with an appeal therein, if such director or officer
acted in good faith for a purpose which he or she reasonably believed to be in, or, in the case of service for another corporation
or other enterprise, not opposed to, the best interests of the corporation. The corporation may not, however, indemnify any officer
or director pursuant to Section 722(c) in respect of (1) a threatened action or a pending action that is settled or otherwise disposed
of or (2) any claim, issue or matter for which the person has been adjudged to be liable to the corporation, unless and only to
the extent that the court in which the action was brought or, if no action was brought, any court of competent jurisdiction, determines
upon application that the person is fairly and reasonably entitled to indemnity for that portion of the settlement and expenses
as the court deems proper.
Section 723 of the New York Business Corporation
Law provides that an officer or director who has been successful on the merits or otherwise in the defense of a civil or criminal
action of the character set forth in Section 722 is entitled to indemnification as permitted in such Section. Section 724 of the
New York Business Corporation Law permits a court to award the indemnification required by Section 722.
The Company has entered into agreements with
its directors and certain officers to indemnify them for liabilities or costs arising out of any alleged or actual breach of duty,
neglect, errors or omissions while serving as a director. The Company also maintains and pays premiums for directors' and
officers' liability insurance policies.
Item 7.	  Exemption from Registration
Claimed
Not applicable.
Item 8.	  Exhibits
Exhibit
Description
4.1
Restated Certificate of Incorporation of Omnicom Group Inc. (filed as Exhibit 3.1 to our Quarterly Report on Form 10-Q for the quarter ended September 30, 2011 and incorporated herein by reference).
4.2
Bylaws of the Company, as amended and restated on May 22, 2012 (filed as Exhibit 3.2 to our Current Report on Form 8-K dated May 24, 2012 and incorporated herein by reference).
5.1
Opinion of Counsel (filed herewith).
10.1
Omnicom Group Inc. 2013
Incentive Award Plan
(filed with the Company's Definitive Proxy Statement, filed on April 11, 2013, and incorporated herein by reference).
23.1
Consent of KPMG LLP (filed herewith).
23.2
Consent of Counsel (included in Exhibit 5.1).
24.1
Power of Attorney
(included on signature page of this registration statement).
Item 9.	  Undertakings
(a)
The undersigned registrant hereby undertakes:
(1)
To file, during any period in which offers or sales are being made, a post-effective amendment
to this registration statement:
(i)
To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;
(ii)
To reflect in the prospectus any facts or events arising after the effective date of the registration
statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental
change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume
of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation
from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission
pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum
aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective registration statement;
and
(iii)
To include any material information with respect to the plan of distribution not previously disclosed
in the registration statement or any material change to such information in the registration statement;
provided, however,
that paragraphs (a)(1)(i) and (a)(1)(ii) shall not apply to information required to be included in a post-effective amendment by
those paragraphs and contained in reports filed with or furnished to the Commission by the registrant pursuant to section 13 or
section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in this Registration Statement.
(2)
That, for the purpose of determining any liability under the Securities Act of 1933, each such
post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof.
(3)
To remove from registration by means of a post-effective amendment any of the securities being
registered which remain unsold at the termination of the offering.
(b)
The undersigned registrant hereby undertakes that, for purposes of determining any liability under
the Securities Act of 1933, each filing of the registrant's annual report pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan's annual report pursuant
to section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall
be deemed to be a new registration statement relating to the securities offered herein, and the offering of such securities at
that time shall be deemed to be the initial
bona fide
offering thereof.
(c)
Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted
to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as
expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other
than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant
in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection
with the securities being
registered, the registrant will,
unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction
the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final
adjudication of such issue.
SIGNATURES
Pursuant to the
requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of New York, State of New York, on this 21st day of May, 2013.
OMNICOM GROUP, INC.
By:
/s/ Randall J. Weisenburger
Randall J. Weisenburger
Executive Vice President and Chief
Financial Officer
POWER OF ATTORNEY
Each person whose
signature appears below hereby authorizes and appoints John D. Wren and Michael J. O'Brien, and each of them, with full power
to act without the other, as attorney-in-fact and agent, with full power of substitution and resubstitution, to sign on his or
her behalf, individually and in the capacities stated below, and to file any and all amendments, including post-effective amendments,
to this Registration Statement and other documents in connection therewith, with the Commission, granting to said attorney-in-fact
and agent full power and authority to perform any other act on behalf of the undersigned required to be done in the premises.
Pursuant to the
requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities
and on the dates indicated.
Signature
Title
Date
/s/
                                                          Bruce Crawford
Chairman
    and Director
May
    21, 2013
Bruce Crawford
/s/
                                                          John D. Wren
President,
        Chief Executive Officer and Director
May
    21, 2013
John
                                                          D. Wren
(Principal
    Executive Officer)
/s/
                                                          Randall J. Weisenburger
Executive
    Vice President and Chief Financial Officer
May
    21, 2013
Randall
                                                          J. Weisenburger
(Principal
    Financial Officer)
/s/
                                                          Philip J. Angelastro
Senior
        Vice President Finance and Controller
May
    21, 2013
Philip
                                                          J. Angelastro
(Principal
    Accounting Officer)
/s/
                                                          Alan R. Batkin
Director
May
    21, 2013
Alan
                                                          R. Batkin
/s/
                                                          Mary C. Choksi
Director
May
    21, 2013
Mary
                                                          C. Choksi
/s/
                                                          Robert Charles Clark
Director
May
    21, 2013
Robert
                                                          Charles Clark
/s/
                                                          Leonard S. Coleman, Jr.
Director
May
    21, 2013
Leonard
                                                          S. Coleman, Jr.
/s/
                                                          Errol M. Cook
Director
May
    21, 2013
Errol M. Cook
/s/
                                                                      Susan S. Denison
Director
May
    21, 2013
Susan
                                                          S. Denison
/s/
                                                          Michael A. Henning
Director
May
    21, 2013
Michael
                                                          A. Henning
/s/
                                                          John R. Purcell
Director
May
    21, 2013
John
                                                          R. Purcell
/s/
                                                          Linda Johnson Rice
Director
May
    21, 2013
Linda
                                                          Johnson Rice
/s/
                                                          Gary L. Roubos
Director
May
    21, 2013
Gary
                                                          L. Roubos
EXHIBIT INDEX
Exhibit
Description
4.1
Restated Certificate of Incorporation of Omnicom Group Inc. (filed as Exhibit 3.1 to our Quarterly Report on Form 10-Q for the quarter ended September 30, 2011 and incorporated herein by reference).
4.2
Bylaws of the Company, as amended and restated on May 22, 2012 (filed as Exhibit 3.2 to our Current Report on Form 8-K dated May 24, 2012 and incorporated herein by reference).
5.1
Opinion of Counsel (filed herewith).
10.1
Omnicom Group Inc. 2013
Incentive Award Plan
(filed with the Company's Definitive Proxy Statement, filed on April 11, 2013, and incorporated herein by reference).
23.1
Consent of KPMG LLP (filed herewith).
23.2
Consent of Counsel (included in Exhibit 5.1).
24.1
Power of Attorney
(included on signature page of this registration statement).