USS Long Beach (CLGN-160/CGN-160/CGN-9) was a nuclear-powered guided missile cruiser in the United States Navy. She was the only ship of her class and the third Navy ship named after the city of Long Beach, California. She was the first nuclear‑power surface warship in history.

Long Beach was laid down 2 December 1957, launched 14 July 1959 and commissioned 9 September 1961. Long Beach deployed to Vietnam during the war and served numerous times in the Western Pacific, Indian Ocean and Persian Gulf. By the 1990s, nuclear power was deemed too expensive to use on surface ships smaller than an aircraft carrier, while there were defense budget cutbacks after the end of the Cold War. Long Beach was decommissioned on 1 May 1995 instead of receiving her third nuclear refueling and proposed upgrade. What remained of the hull, after the superstructure had been removed and the ship defueled, was sold for scrap in 2012 at Puget Sound Naval Shipyard.