The Longest Day
- Annu: 1962
- Paese: United States of America
- Genre: War, Action, Drama
- Studio: Darryl F. Zanuck Productions, 20th Century Fox
- Parolla chjave: steel helmet, resistance, allies, world war ii, normandy, france, based on true story, d-day, historical fiction, soldier
- Direttore: Ken Annakin, Bernhard Wicki, Andrew Marton, Darryl F. Zanuck, Gerd Oswald
- Cast: Henry Fonda, John Wayne, Robert Mitchum, Robert Ryan, Eddie Albert, Paul Anka