Diamonds Are Forever is a 1971 spy film and the seventh film in the James Bond series produced by Eon Productions. It is the sixth and final Eon film to star Sean Connery, who returned to the role as the fictional MI6 agent James Bond, having declined to reprise the role in On Her Majesty's Secret Service (1969).

The film is based on Ian Fleming's 1956 novel of the same name and is the second of four James Bond films directed by Guy Hamilton. The story has Bond impersonating a diamond smuggler to infiltrate a smuggling ring and uncovering a plot by his old enemy Ernst Stavro Blofeld to use the diamonds to build a space-based laser weapon. Bond sets out to stop the smuggling but discovers he must defeat Blofeld before he destroys Washington D.C. in his plan to blackmail the world with nuclear supremacy.

After George Lazenby left the series, producers Harry Saltzman and Albert R. Broccoli tested other actors, but studio United Artists wanted Connery back, paying a then-record $1.25 million salary for him to return. The producers were inspired by Goldfinger; as with that film, Guy Hamilton was hired to direct, and Shirley Bassey performed the title song. Locations included Las Vegas, California, and Amsterdam. Diamonds Are Forever was a commercial success and received positive reviews, though some of the humor has become controversial in retrospect. It was nominated for the Academy Award for Best Sound.

Diamonds Are Forever was followed by Live and Let Die in 1973, with Roger Moore taking over Connery as Bond.