UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 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): March 23, 2012

(Exact name of registrant as specified in charter)

(240) 744-1150

(Registrant’s telephone number, including area code)

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):

This report contains certain forward-looking statements within the meaning of the federal securities laws. These forward-looking statements are generally identifiable by use of the words “will,” “believe,” “expect,” “intend,” “anticipate,” “estimate,” “project” or similar expressions, whether in the negative or affirmative. Forward-looking statements are based on management’s current expectations and assumptions and are not guarantees of future performance. Factors that may cause actual results to differ materially from current expectations include risks related to the timely completion of the property improvement plan referred to in this report and those risks and uncertainties associated with our business described from time to time in our filings with the Securities and Exchange Commission, including our Annual Report on Form 10-K for the year ended December 31, 2011. Accordingly, there is no assurance that our expectations will be realized. Except as otherwise required by the federal securities laws, we expressly disclaim any obligations or undertaking to publicly release any updates or revisions to any forward-looking statement contained in this report to reflect events, circumstances or changes in expectations after the date of this report.

On March 23, 2012, DiamondRock Hospitality Company (the “Company”) executed a franchise agreement with Marriott International, Inc. (“Marriott”) to affiliate the Radisson Lexington Hotel New York (the “Hotel”) with Marriott’s Autograph Collection upon the completion of a comprehensive $30 million property improvement plan. Separately, the Company exercised its termination option under the Hotel’s existing franchise agreement with Radisson Hotels International, Inc., for which the Company paid a $750,000 termination fee.

The Hotel will operate under the Radisson brand through September 15, 2012. During the period following the Hotel’s separation from the Radisson brand and prior to becoming affiliated with the Autograph Collection, which is expected to occur in the second quarter of 2013, the Company expects to operate the Hotel as “The Lexington,” an independent hotel. Highgate Hotels will remain the manager of the Hotel.

The information in this Current Report on Form 8-K is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. The information in this Current Report shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act regardless of any general incorporation language in such filing.

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 hereunto duly authorized.