USAT Liberty was a United States Army transport ship torpedoed by Japanese submarine I-166 in January 1942 and beached on the island of Bali. She had been built as a design 1037 ship for the United States Shipping Board during World War I and had served in the United States Navy during that conflict as animal transport USS Liberty (ID-3461). She was also notable as the first ship constructed at Federal Shipbuilding, Kearny, New Jersey. In 1963 a volcanic eruption moved the ship off the beach, and Liberty's wreck is now a popular dive site.
Liberty was launched on 19 June 1918 by the Federal Shipbuilding Company in Kearny, New Jersey, and acquired by the United States Navy on 7 October 1918 and commissioned the same day with Lieutenant Commander Charles Longbottom in command. Assigned to the Naval Overseas Transportation Service, Liberty departed the New York Navy Yard on 24 October 1918, arriving at Brest, France, with her cargo of horses on 8 November. Over the next 6 months, Liberty made two additional cruises from New York to France discharging both animal and general cargo at French ports. Loaded with 436 tons of U.S. Army cargo and 2,072 tons of steel rails, Liberty arrived at Newport News, Virginia, on 30 April 1919 from her final cruise. She was decommissioned there on 7 May and was returned to the United States Shipping Board the same day.