The Duchess of Langeais (French: La Duchesse de Langeais) is a 1942 French historical drama film directed by Jacques de Baroncelli and starring Edwige Feuillère, Pierre Richard-Willm and Aimé Clariond. It is also known as Wicked Duchess. It is based on the 1834 novel of the same name by Honoré de Balzac. It was shot at the Buttes-Chaumont Studios in Paris. The film's sets were designed by the art director Serge Piménoff. Francis Poulenc composed the music.