Trouble Backstairs (German: Krach im Hinterhaus) is a 1935 German romantic comedy film directed by Veit Harlan and starring Henny Porten, Else Elster and Rotraut Richter. It marked the directoral debut of Harlan, who had previously worked as an actor, and quickly developed as a leading director of Nazi Germany. It was based on a play by Maximilian Böttcher, and was remade in 1949.

It was shot at the Terra Studios in Berlin. The film's sets were designed by the art director Bruno Lutz and Hermann Warm