Forbidden Fruit (French: Le Fruit défendu) is a 1952 French drama film directed by Henri Verneuil and starring Fernandel, Françoise Arnoul and Claude Nollier. Drawn from the novel Act of Passion (Lettre à mon juge) by Georges Simenon, it omits the book's grim resolution and instead invents a happy ending. The story it tells is of a doctor in a provincial city with a devoted wife and children who falls for a sexy but transient young woman and then loses her before his domestic and professional life are both ruined.

It was shot at the Saint-Maurice Studios in Paris. The film's sets were designed by the art director Rino Mondellini.