USS Santa Olivia (SP-3125) was a cargo ship and later troop transport that served with the United States Navy during and after World War I. The ship later went into merchant service as a freighter, and during World War II took part in a number of transatlantic convoys. Built in 1918, Santa Olivia was acquired by the Navy on completion, and during the war made two voyages to France as a cargo ship. After the war, she was converted into a troop transport, and repatriated almost 7,500 U.S. troops in four round trips in 1919. A teenage Humphrey Bogart served aboard Santa Olivia in this period.