O diabo à solta
- Ano: 1968
- País: United Kingdom
- Gênero: Terror
- Estúdio: Hammer Film Productions
- Palavra-chave: based on novel or book, supernatural, satanism, giant spider, black magic, satanist, devil, occult, ritual sacrifice, occult horror, devil worship, 1920s, folk horror
- Diretor: Terence Fisher
- Fundida: Christopher Lee, Charles Gray, Niké Arrighi, Leon Greene, Patrick Mower, Gwen Ffrangcon Davies