The Memphis Belle is a Boeing B-17F Flying Fortress used during the Second World War that inspired the making of two motion pictures: a 1944 documentary film, Memphis Belle: A Story of a Flying Fortress and the 1990 Hollywood feature film, Memphis Belle. It was one of the first United States Army Air Forces (USAAF) B-17 heavy bombers to complete 25 combat missions, after which the aircrew returned with the bomber to the United States to sell war bonds.

The Boeing B-17 Flying Fortress is an American four-engined heavy bomber aircraft developed in the 1930s for the United States Army Air Corps (USAAC). A fast and high-flying bomber of its era, the B-17 was used primarily in the European Theater of Operations and dropped more bombs than any other aircraft during World War II. It is the third-most produced bomber of all time, behind the American four-engined Consolidated B-24 Liberator and the German multirole, twin-engined Junkers Ju 88. It was also employed as a transport, antisubmarine aircraft, drone controller, and search-and-rescue aircraft.