USS Orca (SP-726)
 The first USS Orca (SP-726) was a yacht that served in the United States Navy as a patrol vessel from 1917 to 1918.Orca was built as the steam yacht Monaloa by George Lawley & Son Neponset Massachusetts. Later renamed Orca she was commissioned into the U.S. Navy for World War I service on 8 May 1917 with Boatswain F. D. Grassie in command and was formally purchased by the United States Government from S. W.