The Collector is a 1965 psychological horror film directed by William Wyler and starring Terence Stamp and Samantha Eggar. Its plot follows a young Englishman who stalks a beautiful art student before abducting and holding her captive in the basement of his rural farmhouse. It is based on the 1963 novel of the same title by John Fowles, with the screenplay adapted by Stanley Mann and John Kohn. Wyler turned down The Sound of Music to direct the film.

Most of the film was shot on soundstages in Los Angeles, though exterior sequences were filmed on location in London, Forest Row in East Sussex and Westerham in Kent. Filming occurred in the late spring and early summer of 1964. Wyler's original cut ran approximately three hours but was trimmed to two hours at the insistence of the studio and producer.

The Collector premiered at the Cannes Film Festival in May 1965, where both Stamp and Eggar won the awards for Best Actor and Best Actress, respectively. Upon its theatrical release in June 1965, the film received largely favourable reviews. Eggar won a Golden Globe Award for Best Actress in a Motion Picture – Drama for her performance, and was also nominated for the Academy Award for Best Actress, while Wyler received a nomination for Best Director. It was the last of Wyler's record 12 Academy Award nominations for Best Director.