8-K

                                  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): JUNE 14, 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))

ITEM 8.01. OTHER EVENTS

      On June 14, 2005, Diamond Offshore Drilling, Inc. issued a press release
announcing that it had closed the private placement of $250 million principal
amount of its 4.875% senior unsecured notes due July 1, 2015.

      Filed herewith is a copy of such press release.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS

      (c) Exhibits.


 Exhibit number   Description
 --------------   -----------
      99.1        Press release of June 14, 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: June 14, 2005



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                                  EXHIBIT INDEX




 Exhibit number   Description
 --------------   -----------
      99.1        Press release of June 14, 2005

EX-99.1

                                                                    EXHIBIT 99.1

FOR IMMEDIATE RELEASE                                     CONTACT:  LES VAN DYKE
                                                    DIRECTOR, INVESTOR RELATIONS
                                                                  (281) 492-5370

                    DIAMOND OFFSHORE DRILLING, INC. ANNOUNCES
                  CLOSING OF $250 MILLION SENIOR NOTE OFFERING

Houston, Texas, June 14, 2005 -- Diamond Offshore Drilling, Inc. (NYSE:DO) today
announced the completion of the offering of $250 million principal amount of the
Company's 4.875% senior unsecured notes due July 1, 2015. The transaction
resulted in net proceeds to Diamond Offshore of approximately $247.7 million.

The notes have not been registered under the Securities Act of 1933, as amended,
or the securities laws of any other jurisdiction and may not be offered or sold
in the United States absent registration or an applicable exemption from the
registration requirements.

Diamond Offshore provides contract drilling services to the energy industry
around the globe and is a leader in deepwater drilling. The Company's fleet of
44 offshore drilling rigs consists of 29 semisubmersibles, 14 jack-ups and one
drillship.