One Night Apart (German: Eine Nacht im Separee) is a 1950 West German period comedy film directed by Hans Deppe and starring Kurt Seifert, Olga Chekhova and Sonja Ziemann.

The film's sets were designed by the art director Gabriel Pellon.

In Berlin during pre-First World War era, a highly respectable figure arrives with his friend for a conference on public morality.

However he quickly loses his head over a nightclub singer he encounters.

His wife, concerned about her husband's welfare, arrives in the city soon afterwards.