The Newport Casino is an athletic complex and recreation center located at 186-202 Bellevue Avenue, Newport, Rhode Island, United States. Built in 1880, it was designated a National Historic Landmark on February 27, 1987, in recognition for its architectural significance as one of the nation's finest Shingle style buildings, and for its importance in the history of tennis in the United States. The complex now houses the International Tennis Hall of Fame, and was the site of the earliest US Opens.