Harper
- annos singulos: 1966
- Patriam: United States of America
- genus: Mystery, Crime, Thriller
- Studio: Gershwin-Kastner, Warner Bros. Pictures
- keyword: adultery, husband wife relationship, based on novel or book, kidnapping, nightclub, investigation, swimming pool, murder, los angeles, california, divorce, private detective, missing person, nightclub singer, private eye, lew harper, wealthy family
- Director: Jack Smight
- cast: Paul Newman, Lauren Bacall, Julie Harris, Arthur Hill, Janet Leigh, Pamela Tiffin