Day the World Ended
- Ano: 1955
- País: United States of America
- Gênero: Terror, Ficção científica
- Estúdio: Selma Enterprises, Golden State Productions, American Releasing Corporation (ARC), American International Pictures
- Palavra-chave: monster, nuclear war, radiation, holocaust (shoah), mutant, post-apocalyptic future, end of the world, survival, murder, survivalist, scientist, cannibal, radiation sickness
- Diretor: Roger Corman
- Fundida: Richard Denning, Lori Nelson, Paul Birch, Mike Connors, Adele Jergens, Raymond Hatton