Roswolsky's Mistress (German: Die Geliebte Roswolskys) is a 1921 German silent drama film directed by Felix Basch and starring Asta Nielsen, Paul Wegener, and Wilhelm Diegelmann. It was based on a novel by George Froeschel. The film was shot at the Tempelhof Studios in Berlin, with sets designed by art directors Robert Neppach and Jack Winter. According to one estimate, the star Asta Nielsen wore thirty six different costumes during the course of the film.