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               EXHIBIT 5: OPINION OF MULDOON MURPHY & AGUGGIA LLP


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                  [LETTERHEAD OF MULDOON MURPHY & AGUGGIA LLP]

                                  June 5, 2007


Board of Directors
Fox Chase Bancorp, Inc.
4390 Davisville Road
Hatboro, Pennsylvania  19040

         Re:      FOX CHASE BANCORP, INC. 2007 EQUITY INCENTIVE PLAN

Board Members:

         We have been requested by Fox Chase Bancorp, Inc., a federal
corporation (the "Company"), to issue our opinion in connection with the
registration on Form S-8 of shares of the Company's common stock, par
value $0.01 per share (the "Shares"). The registration statement on Form S-8
("Registration Statement") covers 1,007,030 Shares that may be issued as awards
under the Fox Chase Bancorp, Inc. 2007 Equity Incentive Plan (the "Plan"). The
Plan provides that no more than 719,307 Shares may be issued upon the exercise
of stock options and no more than 287,723 Shares may be issued upon the grant of
restricted stock awards. The registration of the Shares is being effected under
the Securities Act of 1933, as amended (the "Securities Act").

         We have made such legal and factual examinations and inquiries as we
have deemed advisable for the purpose of rendering this opinion. In our
examination, we have assumed and have not verified (i) the genuineness of all
signatures; (ii) the authenticity of all documents submitted to us as originals;
(iii) the conformity with the originals of all documents supplied to us as
copies; and (iv) the accuracy and completeness of all corporate records and
documents and of all certificates and statements of fact, in each case given or
made available to us by the Company or its subsidiaries.

         Based on the foregoing and limited in all respects to federal law, it
is our opinion that the Shares reserved for issuance under the Plan are duly
authorized and, with respect to the Shares of Company common stock issuable upon
the exercise of stock options granted or to be granted under the Plan, upon
payment for such stock options, and, with respect to awards of restricted stock
under the Plan, upon issuance of such shares in the manner described in the
Plan, the Shares granted or to be granted will be validly issued, fully paid and
nonassessable.

         We hereby consent to the filing of this opinion as an exhibit to the
Company's Registration Statement on Form S-8, and we consent to the use of the
name of our firm under the heading "Interests of Named Experts and Counsel"
therein.


                                   Very truly yours,


                                   /s/ Muldoon Murphy & Aguggia LLP
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                                   MULDOON MURPHY & AGUGGIA LLP