USS Minnemac II (SP-202) was a United States Navy patrol vessel in commission from 1917 to 1919. Minnemac II was built as a civilian motorboat of the same name in 1914 by George Lawley and Sons at Neponset, Massachusetts. The U.S. Navy acquired her under a free lease from her owner, Arthur J. Eddy of Chicago, Illinois on 7 May 1917 for World War I service as a patrol vessel. She was enrolled in the Naval Defense Reserve Force on 3 July 1917 and commissioned as USS Minnemac II (SP-202) on 5 July 1917 with Ensign Jerome Eddy, USNRF, in command.