The Strange Door
- annos singulos: 1951
- Patriam: United States of America
- genus: Horror, Thriller
- Studio: Universal International Pictures, Universal Pictures
- keyword: kidnapping, secret passage, arranged marriage, torture, gothic horror, trapped, dungeon, based on short story, water wheel, 17th century, chateau
- Director: Joseph Pevney
- cast: Charles Laughton, Boris Karloff, Sally Forrest, Richard Wyler, William Cottrell, Alan Napier