USS Corporal (SS-346), a Balao-class submarine, was a ship of the United States Navy named for the Corporal, an alternate name for the Fallfish, found in streams of the Eastern United States.

Corporal was launched 10 June 1945 by Electric Boat Co., Groton, Conn., sponsored by Mrs. H. C. Wick; commissioned 9 November 1945, Commander E. E. Shelby in command; and reported to the Atlantic Fleet.

Corporal cleared New London 8 January 1946 for her base at Key West, arriving 25 February. She took part in antisubmarine warfare projects and fleet exercises off Florida and Bermuda and in the Caribbean until returning to Groton, Conn. 26 February 1947. After extensive modernization, she returned to Key West 2 March 1948.

She continued to conduct training and join in exercises off Florida and in the Caribbean until her first tour of duty in the Mediterranean with the 6th Fleet from 16 July 1952 to 15 October. Returning to local operations off Key West, she also participated in large-scale fleet exercises in the Atlantic and Caribbean. She cruised to the British Isles from 11 March to 16 May 1957, and upon her return to Key West, continued training and services to the Fleet Sonar School. Through 1958 and 1959, she operated frequently in ordnance tests, and from August 1959, when Charleston, South Carolina, became her home port, cruised widely along the east coast. In December 1960 Corporal sailed to visit Germany and then join the 6th Fleet in the Mediterranean.

USS Corporal was converted to a Guppy III configuration and continued to operate throughout the 60's and early 70's in various capacities during the Cold War. She made regular "Northern" runs across the Arctic Circle above the North Sea, regular "Mediterranean Cruises", frequently operated in the Caribbean and trained submarine sailors in conjunction with the Submarine School in New London.

Mike Mayborne-TMSN served aboard USS Corporal from 1963 to 1967 as a Torpedo man. Mike received several service commendations for his commitment to his crew and duties aboard SS346. His duty as a TMSN was in the torpedo room and his primary responsibility was loading torpedoes and preparing them for firing on orders from the control room. Torpedo man's mates maintain underwater explosive weapons such as torpedoes, rockets and missiles and the systems used to launch them. They are also responsible for the safe loading and unloading, shipping and storage of these weapons. Mike Mayborne was honorably discharged from the Navy in the spring of 1967 and married Terry Anderson in the fall of 1967.