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): APRIL 27, 2005

                         DIAMOND OFFSHORE DRILLING, INC.
               (Exact Name of Registrant as Specified in Charter)


         DELAWARE                         1-13926                 76-0321760
(State or Other Jurisdiction      (Commission File Number)      (IRS Employer
    of Incorporation)                                        Identification No.)


                               15415 KATY FREEWAY
                              HOUSTON, TEXAS 77094
              (Address of Principal Executive Offices and Zip Code)


       Registrant's telephone number, including area code: (281) 492-5300


                                 NOT APPLICABLE
          (Former name or former address, if changed since last report)


      Check the appropriate line 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))

                    INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION

      On April 27, 2005, Diamond Offshore Drilling, Inc. issued a press release
announcing its financial results for the fiscal quarter ended March 31, 2005. A
copy of such press release is furnished herewith as Exhibit 99.1.

      The information furnished in this Current Report on Form 8-K, including
Exhibit 99.1, is being furnished pursuant to Item 2.02 of Form 8-K and shall not
be deemed "filed" with the Securities and Exchange Commission and will not be
incorporated by reference into any registration statement filed under the
Securities Act of 1933, as amended, unless specifically identified therein as
being incorporated by reference.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS

      (c) Exhibits. The following exhibit is furnished as part of Item 2.02 of
          this Current Report on Form 8-K:


 Exhibit number          Description
 --------------          -----------

     99.1                Press Release dated April 27, 2005



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                                   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.

                                       DIAMOND OFFSHORE DRILLING, INC.


                                       By: /s/ William C. Long
                                           ---------------------------
                                             William C. Long
                                             Vice President, General
                                             Counsel and Secretary

Dated:  April 27, 2005


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                                  EXHIBIT INDEX



 Exhibit number          Description
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     99.1                Press Release dated April 27, 2005