Since its introduction in the years before the First World War, the International Women’s Day became a day to fight for women’s rights, against war, exploitation and disenfranchisement. During the years that followed, the “Women’s Day Movement” experienced progress and setbacks, success and defeat. Sometimes the festivities and demonstrations were declared illegal, sometimes they were placidly accepted and sometimes they were organised by the government. This article sketches the history of the Women’s Day in 20th century Germany and offers an analysis of its shifting political implications, both on the local and on the transnational level.