Dangers of the Engagement Period (German: Gefahren der Brautzeit) is a 1930 German silent comedy film directed by Fred Sauer and starring Marlene Dietrich, Willi Forst, and Lotte Lorring. It is also known by the alternative title of Nights of Love (German: Liebesnächte).

The film's sets were designed by the art director Max Heilbronner. It was shot at the Staaken Studios in Berlin and on location in Scheveningen in the Netherlands. Shot as a silent during September and October 1929, it was not released until February the following year by which time sound films were increasingly dominant. It was given a favourable review by Lotte Eisner in the Film-Kurier.While making the film Dietrich was also appearing in a stage show alongside Hans Albers. It was her final film before her breakthrough role in The Blue Angel, which made her an international star and led to her departure for Hollywood.