List of Gato-class submarines

Seventy-seven Gato-class submarines were built during World War II, commissioned from November 1941 through April 1944. The class was very successful in sinking Japanese merchant ships and naval vessels: the top three US submarines in tonnage sunk were Gatos, along with three of the top seven in number of ships sunk. But success had a price: 20 of the 52 US submarines lost in that war were of this class, plus USS Halibut (SS-232), a damaged boat that returned to the US but was considered a constructive total loss and not repaired. Although many of the class were in reserve postwar and scrapped in 1959-1960, some Gatos served actively with the US Navy into the late 1960s, and others served with foreign navies into the early 1970s.

SS-361 through SS-364 were initially ordered as Balao-class, and were assigned hull numbers that fall in the middle of the range of numbers for the Balao class (SS-285 through SS-416 & SS-425–426). Thus, in some references they are listed with that class. However, they were completed by Manitowoc as Gatos, due to an unavoidable delay in Electric Boat's development of Balao-class drawings. Manitowoc was a follow yard to Electric Boat, and was dependent on them for designs and drawings.

Abbreviations
Abbreviations and hull classification symbols for postwar redesignations/conversions:
 * AGSS — auxiliary submarine (various roles including sonar testing)
 * APSS/LPSS — amphibious transport submarine
 * FS — "fleet snorkel" conversion, including a snorkel and streamlined sail
 * G IB — GUPPY IB conversion, including a snorkel, streamlined sail, and improved batteries
 * IXSS — unclassified submarine
 * PT — pierside trainer for naval reservists, reportedly immobilized by removing the propellers
 * SSG — guided missile submarine
 * SSK — hunter-killer submarine
 * SSO/AOSS — submarine oiler conversion
 * SSR — radar picket submarine
 * Struck — Struck (deleted) from the Naval Vessel Register, usually followed by scrapping or other final disposal