Harper
- Sal: 1966
- Welat: United States of America
- Genre: 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
- Serek: Jack Smight
- Avdan: Paul Newman, Lauren Bacall, Julie Harris, Arthur Hill, Janet Leigh, Pamela Tiffin