Marthe Richard (French: Marthe Richard au service de la France) is a 1937 French war spy film directed by Raymond Bernard and starring Edwige Feuillère, Erich von Stroheim and Marcel Dalio. It was shot at the Joinville Studios in Paris. The film's sets were designed by the art director Jean Perrier. It is based on the story of the French First World War spy Marthe Richard. It enjoyed great commercial success in France and was one of the most popular spy films of the decade.
In Alsace at the beginning of the First World War, Marthe Richard's parents are executed by the German forces. Swearing revenge she goes to Paris to join the French secret service. She is sent to neutral Spain to seduce the German spy Baron Erich von Ludow and steal secret plans from him, to displeasure of his current mistress Mata Hari.