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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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                                    FORM 6-K

                        REPORT OF FOREIGN PRIVATE ISSUER

                    Pursuant to Rule 13a-16 or 15d-16 of the
                         Securities Exchange Act of 1934

                         For the month of November, 2008

                        Commission File Number: 000-21742

                                   Acergy S.A.
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                 (Translation of registrant's name into English)

                              200 Hammersmith Road
                                 London, W6 7DL
                                     England
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                    (Address of principal executive offices)

     Indicate by check mark whether the registrant files or will file annual
reports under cover Form 20-F or Form 40-F.

                 Form 20-F [X]                     Form 40-F [ ]

     Indicate by check mark if the registrant is submitting the Form 6-K in
paper as permitted by Regulation S-T Rule 101(b)(1): [ ]

     Indicate by check mark if the registrant is submitting the Form 6-K in
paper as permitted by Regulation S-T Rule 101(b)(7): [ ]

     Indicate by check mark whether by furnishing the information contained in
this Form, the registrant is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

                 Yes [ ]                           No [X]

     If "Yes" is marked, indicate below the file number assigned to the
registrant in connection with Rule 12g3-2(b): 82-________

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Attached herewith as Exhibit 99.1 is a press release, issued on November 24,
2008, whereby Acergy S.A. (the "Company") announced that as of November 21, 2008
the following address will be used as the Company's registered address: 412F,
route d'Esch, L-2086 Luxembourg.

The information set forth above shall be deemed to be incorporated by reference
into the prospectuses forming a part of our Registration Statements on Form S-8
(No. 33-85168, No. 333-9292, No. 333-74321, No. 333-124983 and No. 333-124997)
and our Registration Statements on Form F-3 and Form F-3/A (no. 333-86288) and
to be part of such prospectuses from the date of the filing thereof. The
attached press release shall not be deemed "filed" for purposes of Section 18 of
the Securities Exchange Act of 1934 or otherwise subject to the liabilities of
that section, nor shall it be deemed incorporated by reference in any filing
under the Securities Act of 1933, except as shall be expressly set forth by
specific reference in such filing.

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                                    SIGNATURE

          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.

                                                  ACERGY S.A.


Date: November 27, 2008                           By: /s/ Stuart Jackson
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                                                  Name:  Stuart Jackson
                                                  Title: Chief Financial Officer