Blackmail
- Gore: 1929
- Nyika: United Kingdom
- Genre: Drama, Thriller, Crime
- Studio: British International Pictures
- Keyword: london, england, blackmail, scotland yard, based on play or musical, black and white, boyfriend girlfriend relationship
- Mutungamiriri: Alfred Hitchcock
- Cast: Anny Ondra, Sara Allgood, Charles Paton, John Longden, Donald Calthrop, Cyril Ritchard