USS Sturgeon has been the name of three submarines of the United States Navy:
USS E-2 (SS-25) was an E-class submarine of the United States Navy. Originally named Sturgeon, the boat was launched on 15 June 1911 by the Fore River Shipyard, Quincy, Massachusetts; sponsored by Ms. Margaret Nelson Little; renamed E-2 on 17 November 1911; and commissioned on 14 February 1912, Ensign C. N. Hinkamp in command.
Serving in the Atlantic Submarine Flotilla, E-2 sailed out of Newport, Rhode Island for developmental exercises and training. From 5 January-21 April 1914, she cruised to Guantanamo Bay and the Gulf of Mexico. She returned to Naval Station Newport on 27 July, for training operations for the remainder of the summer and from February–May 1915 off Florida.
On June 19, she entered New York Navy Yard for overhaul. While sitting in dry dock Number 2, E-2 was victim of a violent explosion and fire on 15 January 1916 when hydrogen gas ignited during conditions of severe battery testing; tests made under the direction of the Edison Storage Battery Company. At the time, E-2 was the test submarine for new nickel battery designed to eliminate the danger from chlorine gas asphyxiation. There were 32 men aboard the submarine at the time of the explosion, consisting of both crew and civilian electricians and mechanics making repairs. Four men were killed and seven injured. The government investigation, led by then Lieutenant Chester W. Nimitz, pointed blame away from the submarine's commanding officer, then Lieutenant Charles M. Cooke, Jr..
USS Sturgeon (SS-187), a Salmon-class submarine, was the second ship of the United States Navy to be named for the sturgeon.
Her keel was laid down on 27 October 1936 by the Mare Island Navy Yard. She was launched on 15 March 1938 sponsored by Mrs. Alice N. Freeman, wife of Charles S. Freeman, Commander, Submarine Force, United States Fleet at the time. The boat was commissioned on 25 June 1938 with Lieutenant Commander A. D. Barnes in command.
Sturgeon completed builder's trials in Monterey Bay and began her shakedown cruise on 15 October, visiting ports in Mexico, Honduras, Panama, Peru, Ecuador, and Costa Rica before returning to San Diego, on 12 December 1938. She was assigned to Submarine Squadron (SubRon) 6 and operated along the West Coast as far north as Washington. She made two squadron cruises to Hawaii with the Pacific Fleet: from 1 July to 16 August 1939 and from 1 April to 12 July 1940. The submarine departed San Diego on 5 November 1940 for Pearl Harbor and operated from there until November 1941.