In a Year of 13 Moons is a 1978 West German drama film directed by Rainer Werner Fassbinder and starring Volker Spengler. The film was made in response to the suicide of Fassbinder's lover at the time, Armin Meier. In a "Top 10" list of his own films, Fassbinder placed In a Year of 13 Moons second, after Beware of a Holy Whore.