M - Eine Stadt sucht einen Mörder
- Annu: 1931
- Paese: Germany
- Genre: Drama, Thriller, Crime
- Studio: Nero-Film AG
- Parolla chjave: berlin, germany, germany, psychopath, detective inspector, child murder, investigation, organized crime, serial killer, black and white, criminal, pre-code, psycho, expressionism, criterion, german expressionism, crime
- Direttore: Fritz Lang
- Cast: Peter Lorre, Ellen Widmann, Inge Landgut, Otto Wernicke, Theodor Loos, Gustaf Gründgens