Exhibit
      31.2





**ICONIX
      BRAND GROUP, INC.**


**CERTIFICATION
      PURSUANT TO RULE 13A-14 OR 15D-14 OF**


**THE
      SECURITIES EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO**


**SECTION
      302 OF THE SARBANES-OXLEY ACT OF 2002**







I,
      Warren
      Clamen, Chief Financial Officer of Iconix Brand Group, Inc, certify
      that:





1.  I
      have
      reviewed this Annual Report on Form 10-K for the period ended December 31,
      2005
      of Iconix Brand Group, Inc.;





2.  Based
      on
      my knowledge, this report does not contain any untrue statement of a material
      fact or omit to state a material fact necessary to make the statements made,
      in
      light of the circumstances under which such statements were made, not misleading
      with respect to the period covered by this report;





3.  Based
      on
      my knowledge, the financial statements, and other financial information included
      in this report, fairly present in all material respects the financial condition,
      results of operations and cash flows of the registrant as of, and for, the
      periods presented in this report;





4.  The
      registrant's other certifying officer(s) and I are responsible for establishing
      and maintaining disclosure controls and procedures (as defined in Exchange
      Act
      Rules 13a-15(e) and 15d-15(e)) for the registrant and have:


a)  Designed
        such disclosure controls and procedures, or caused such disclosure controls
        and
        procedures to be designed under our supervision, to ensure that material
        information relating to the registrant, including its consolidated subsidiaries,
        is made known to us by others within those entities, particularly during
        the
        period in which this report is being prepared;
 b) Designed such internal control over financial reporting, or caused such
          internal control over financial reporting, to be designed under our supervision,
          to provide reasonable assurance regarding the reliability of financial
          reporting
          and the preparation of financial statements for external purposes in accordance
          with generally accepted accounting principles.
 c)  Evaluated
          the effectiveness of the registrant’s disclosure controls and procedures and
          presented in this report our conclusions about the effectiveness of the
          disclosure controls and procedures, as of the end of the period covered
          by this
          report based on such evaluation; and;
 
 d)  Disclosed
        in this report any change in the registrant’s internal control over financial
        reporting that occurred during the registrant’s most recent fiscal quarter (the
        registrant’s fourth fiscal quarter in the case of an annual report) that has
        materially affected, or is reasonably likely to materially affect, the
        registrant’s internal control over financial reporting; and;


5.  The
      registrant’s other certifying officer(s) and I have disclosed, based on our most
      recent evaluation of internal control over financial reporting, to the
      registrant’s auditors and the audit committee of the registrant’s board of
      directors (or persons performing the equivalent functions):





a)  All
      significant deficiencies and material weaknesses in the design or operation
      of
      internal control over financial reporting which are reasonably likely to
      adversely affect the registrant’s ability to record, process, summarize and
      report financial information; and





b)  Any
      fraud, whether or not material, that involves management or other employees
      who
      have a significant role in the registrant’s internal control over financial
      reporting.





Date:
      March 21, 2006


/s/
      Warren Clamen


___________________________________


Warren
      Clamen


Chief
      Financial Officer