The Quiller Memorandum is a 1966 British neo noir eurospy film filmed in Deluxe Color and Panavision, adapted from the 1965 spy novel The Berlin Memorandum, by Elleston Trevor under the name "Adam Hall", screenplay by Harold Pinter, directed by Michael Anderson, featuring George Segal, Alec Guinness, Max von Sydow and Senta Berger. The film was shot on location in West Berlin and in Pinewood Studios, England. It was nominated for three BAFTA Awards, while Pinter was nominated for an Edgar Award for the script.

The film is a spy-thriller set in 1960s West Berlin, where agent Quiller is sent to investigate a neo-Nazi organisation.

The film had its world premiere on 10 November 1966 at the Odeon Leicester Square in the West End of London.