Five ships of the United States Navy have been named USS Helena, after the city of Helena, Montana, though only four were completed.
was a gunboat in service from 1897 to 1932. was a light cruiser, commissioned in 1939, that saw heavy action in the Solomon Islands during World War II, ultimately being sunk in the Battle of Kula Gulf in July 1943. was a planned light cruiser canceled in 1944 while under construction. was a heavy cruiser commissioned in 1945, active in the Korean War, and decommissioned in 1963. is a nuclear attack submarine commissioned in 1987 and decommissioned in 2025.
See also , a patrol boat in commission from 1917 to 1919