The Haus am Horn is a domestic house in Weimar, Germany, designed by Georg Muche. It was built for the Bauhaus Werkschau exhibition which ran from July to September 1923. It was the first building based on Bauhaus design principles, which revolutionized 20th century architectural and aesthetic thinking and practice.

Weimar is a city in the German state of Thuringia, in Central Germany between Erfurt to the west and Jena to the east, 80 km (50 mi) southwest of Leipzig, 170 km (106 mi) north of Nuremberg and 170 km (106 mi) west of Dresden. Together with the neighbouring cities of Erfurt and Jena, it forms the central metropolitan area of Thuringia, with approximately 500,000 inhabitants. The city itself has a population of 65,000. Weimar is well-known because of its cultural heritage and importance in German history.