UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

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Date of Report (Date of earliest event reported): April 9, 2013

GULFMARK OFFSHORE, INC.

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of incorporation)

001-33607

(Commission file number)

76-0526032

(I.R.S. Employer Identification No.)

(713) 963-9522

(Registrant's telephone number, including area code)

N/A

(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))

Louis S. Gimbel, 3^rd has advised the Board of Directors of GulfMark Offshore, Inc (the “Company”) that he will not stand for reelection as a director of the Company at the Company’s Annual Meeting of Stockholders on June 4, 2013. His decision was not the result of any disagreement with the Company or its management.

Mr. Gimbel intends to serve as a director and as a member of the Governance and Nominating Committee until the Annual Meeting, when the size of the Board will be reduced from eight members to seven members.

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.