EXHIBIT 32.1

                  CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
                       PURSUANT TO 18 U.S.C. SECTION 1350
                       AS ADOPTED PURSUANT TO SECTION 906
                        OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Herley Industries,  Inc. (the "Company")
on Form 10-K for the year ended August 2, 2009, as filed with the Securities and
Exchange  Commission on the date hereof (the  "Report"),  I, Richard F. Poirier,
Chief Executive  Officer of the Company,  hereby certify,  pursuant to 18 U.S.C.
Section 1350, as adopted  pursuant to Section 906 of the  Sarbanes-Oxley  Act of
2002, that, to my knowledge:

     (1)  Such Report fully complies with the  requirements  of Section 13(a) or
          15(d) of the Securities Exchange Act of 1934; and

     (2)  The  information  contained  in such Report  fairly  presents,  in all
          material respects,  the financial  condition and results of operations
          of the Company.


                                       Date:     October 16, 2009

                                       By: /S/   Richard F. Poirier
                                           ----------------------------
                                       Name:     Richard F. Poirier
                                       Title:    Chief Executive Officer



                  CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER
                       PURSUANT TO 18 U.S.C. SECTION 1350
                       AS ADOPTED PURSUANT TO SECTION 906
                        OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Herley Industries,  Inc. (the "Company")
on Form 10-K for the year ended August 2, 2009, as filed with the Securities and
Exchange  Commission on the date hereof (the  "Report"),  I, Anello C. Garefino,
Chief Financial  Officer of the Company,  hereby certify,  pursuant to 18 U.S.C.
Section 1350, as adopted  pursuant to Section 906 of the  Sarbanes-Oxley  Act of
2002, that, to my knowledge:

     (1)  Such Report fully complies with the  requirements  of Section 13(a) or
          15(d) of the Securities Exchange Act of 1934; and

     (2)  The  information  contained  in such Report  fairly  presents,  in all
          material respects,  the financial  condition and results of operations
          of the Company.

                                     Date:    October 16, 2009

                                     By:     /S/ Anello C. Garefino
                                           --------------------------
                                     Name:    Anello C. Garefino
                                     Title:   Chief Financial Officer