U.S. SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                    -----------------------------------------

                                    FORM 8-K

                                 CURRENT REPORT
     PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

         Date of Report (Date of earliest event reported) April 26, 2006
                                                          --------------


                                GREATBATCH, INC.
                                ----------------
             (Exact name of registrant as specified in its charter)


         Delaware                       1-16137                   16-1531026
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(State or other jurisdiction    (Commission File Number)        (IRS Employer
      of incorporation)                                      Identification No.)


    9645 Wehrle Drive, Clarence, New York                           14031
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   (Address of principal executive offices)                       (Zip Code)


        Registrant's telephone number, including area code (716) 759-5600
                                                           --------------


                                 Not Applicable
         ---------------------------------------------------------------
          (Former name or former address, if changed since last report)

     Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act (17
    CFR 230.425).

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17
    CFR 240 14a-12).

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
    Exchange Act (17 CFR 240.14d-2(b)).

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
    Exchange Act (17 CFR 240.13e-4(c)).




Item 2.02. Results of Operations and Financial Condition
           ---------------------------------------------

               On April 26, 2006, Greatbatch, Inc. (the "Company") issued a
               press release announcing its results for the fiscal quarter ended
               March 31, 2006. A copy of the release is furnished with this
               report as Exhibit 99.1 and is incorporated by reference into this
               Item 2.02.

               The information contained in this report under Item 2.02 is being
               furnished and shall not be deemed filed for purposes of Section
               18 of the Securities Exchange Act of 1934, as amended (the
               "Exchange Act"), or otherwise subject to the liabilities of that
               section. The information contained in this report under Item 2.02
               shall not be incorporated by reference into any registration
               statement or other document filed pursuant to the Securities Act
               of 1933, as amended, or the Exchange Act, except as shall be
               expressly set forth by specific reference in such filing.


Item 9.01. Financial Statements and Exhibits
           ---------------------------------

               (d)  Exhibits

               99.1 Press Release dated April 26, 2006.




                                   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.


Dated: April 26, 2006                        GREATBATCH, INC.

                                             By: /s/ Thomas J. Mazza
                                                 -------------------------------
                                                 Thomas J. Mazza
                                                 Senior Vice President and Chief
                                                 Financial Officer




EXHIBIT
NUMBER                   DESCRIPTION
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99.1                     Press Release of Greatbatch, Inc. dated April 26, 2006.