UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 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) July 27, 2006
                                                          ----------------------

                              Diomed Holdings, Inc.
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             (Exact Name of Registrant as Specified in Its Charter)

      Delaware                     000-32045                    84-1480636
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(State or Other Jurisdiction       (Commission               (I.R.S. Employer
of Incorporation)                  File Number)              Identification No.)

1 Dundee Park, Andover, Massachusetts                01810
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(Address of Principal Executive Offices)             (Zip Code)

                                 (978) 475-7771
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              (Registrant's Telephone Number, Including Area Code)

                                 Not Applicable
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          (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 (see General Instruction A.2. below):

      |_|   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 7.01.  REGULATION FD DISCLOSURE.

On July 27, 2006, the Company issued a press release, setting forth its earnings
results for the quarterly period ended June 30, 2006 (a copy of which is
attached as Exhibit 99.1 to this Current Report).

ITEM 9.01.  FINANCIAL STATEMENTS AND EXHIBITS

99.1        Press Release, dated July 27, 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 hereunto duly authorized.


                                        Diomed Holdings, Inc.
                                        (Registrant)


Date:    July 27, 2006                  By: /s/ David B. Swank
                                           -------------------------------------
                                        Name: David B. Swank
                                        Title: Chief Financial Officer


List of Exhibits:

99.1             Press Release, dated July 27, 2006