Mary
- År: 1931
- Land: United Kingdom, Germany
- Genre: Mystik, Kriminal, Thriller
- Studio: British International Pictures, Südfilm
- Nyckelord: black and white
- Direktör: Alfred Hitchcock
- Kasta: Alfred Abel, Olga Tschechowa, Paul Graetz, Lotte Stein, Ekkehard Arendt, Jack Mylong-Münz