USS Francis Scott Key (SSBN-657), a Benjamin Franklin-class ballistic missile submarine, was the only submarine of the United States Navy to be named for Francis Scott Key (1779–1843), an American lawyer, author, and amateur poet who wrote the poem "The Defense of Fort McHenry", which became the words to the United States' national anthem, "The Star-Spangled Banner".

During World War II there was a liberty ship named SS Francis Scott Key.

The contract to build Francis Scott Key was awarded to the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut on 29 July 1963 and her keel was laid down there on 5 December 1964.

The Key combined crews and changed homeport from Charleston, SC to Pearl Harbor, HI in late 1992.

Her scrapping via the U.S. Navy's Nuclear-Powered Ship and Submarine Recycling Program at Bremerton, Washington, was completed on 1 September 1995.