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 and Exchange Act of 1934 Date of Report (Date of earliest event reported): May 23, 2006 RIVIERA HOLDINGS CORPORATION (exact name of registrant as specified in its charter) Nevada 000-21430 88-0296885 (State or other jurisdiction of (Commission (IRS Employer corporation) File Number) Identification No.) 2901 Las Vegas Boulevard Las Vegas, Nevada 89109 (Address of principal office) (Zip code) Registrant's Telephone number, (702) 794-9237 including area code ------------------------------------------------------------- (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 (see General Instruction A.2. below): [] 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)) Section 8 - Other Events Item 8.01 - Other Events. Riviera Holdings Corporation announced through a press release the appointment of Mark Lefever as its Executive Vice President, Chief Financial Officer and Treasurer. 99.1 Riviera Holdings Corporation press release, dated May 23, 2006. 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. Date: May 23, 2006 RIVIERA HOLDINGS CORPORATION By: /s/ Tullio Marchionne Secretary