Two submarines of the United States Navy have been named USS Tunny, for the tunny, any of several oceanic fishes resembling the mackerel.
- USS Tunny (SS-282), a Gato-class submarine, served in World War II, as a Regulus missile boat, and during the Vietnam War.
- USS Tunny (SSN-682), a Sturgeon-class submarine, served during the last years of the Cold War.
This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.