Modern Vices (German: Moderne Laster) is a 1924 Austrian silent drama film directed by Leopold Niernberger and starring Nora Gregor, Annemarie Steinsieck and Hugo Werner-Kahle. It is part of the tradition of silent era enlightenment films, which blended a mixture of documentary-style realism and melodrama in portrayals of social problems such as drugs.

It is also known by the alternative title of Narkotica.