Weimar is a city in the federal state of Thuringia, Germany. It is located between Erfurt in the west and Jena in the east, approximately southwest of Leipzig, north of Nuremberg and west of Dresden. Together with the neighbour-cities Erfurt and Jena it forms the central metropolitan area of Thuringia with approximately 500,000 inhabitants, whereas the city itself counts a population of 65,000. Weimar is well known because of its large cultural heritage and its importance in German history.

The term Weimar Republic ( ) is a name used to describe the nation-state which existed between 1919 and 1933 as a successor to the German Empire. The name derives from the city of Weimar, where its constitutional assembly first took place, although the official name of the state was the German Reich (Deutsches Reich), continuing the name from the pre-1918 Imperial period.