Body Double is a 1984 American erotic thriller film directed, co-written, and produced by Brian De Palma. It stars Craig Wasson, Gregg Henry, Melanie Griffith, and Deborah Shelton. The film is a direct homage to the 1950s films of Alfred Hitchcock, specifically Rear Window, Vertigo, and Dial M for Murder, taking plot lines and themes (such as voyeurism and obsession) from the first two.

At the time of its release, the film was a commercial failure, earning $8.8 million at the box office against a production budget of $10 million, as well as mixed reviews, though Griffith's performance earned praise and earned her a nomination for the Golden Globe Award for Best Supporting Actress – Motion Picture. Subsequently, the film received positive appraisal from cinema fans and is now considered to be a cult film.