Clash by Night is a 1952 American film noir drama directed by Fritz Lang and starring Barbara Stanwyck, Paul Douglas, Robert Ryan, Marilyn Monroe and Keith Andes. The film is based on the 1941 play by Clifford Odets, adapted for the screen by writer Alfred Hayes. It is the first major film to credit Monroe before the title, albeit with fourth billing.

Paul Douglas Fleischer, known professionally as Paul Douglas, was an American actor.