The Man in Search of His Murderer (German: Der Mann, der seinen Mörder sucht) is a 1931 German comedy film directed by Robert Siodmak and starring Heinz Rühmann, Lien Deyers and Hans Leibelt.

[1] The film is partially lost; of the original 9 acts, only five (50 minutes) remain.

It was one of the early leading roles for upcoming German star Heinz Rühmann.

It was shot at the Babelsberg Studios in Berlin and premiered at the city's Gloria-Palast.

The film's sets were designed by the art director Robert Herlth and Walter Röhrig.