USS Moccasin (ID-1322) was a United States Navy refrigerated cargo ship in commission from 1918-1919. She was the third ship to carry her name. Moccasin was built as the German commercial passenger-cargo ship SS Prinz Joachim in 1903 at Flensburg, Germany, by Flensburger Schiffbau-Gesellschaft for the Hamburg America Line. When the United States entered World War I on the side of the Allied in April 1917, the United States Government seized her and placed her under the control of the United States Shipping Board (USSB) for use during World War I. Renamed SS Moccasin, she entered service as an American civilian cargo ship. Late in 1917, the United States Army chartered her.