Brennabor-Werke AG (previously Brennabor-Werke Gebr. Reichstein) was a German manufacturer of automobiles, infant buggies, bicycles, motorcycles and, for two decades, of powered motor vehicles. It was based in Brandenburg an der Havel and operated between 1871 and 1945. Till 1930s it was the largest manufacturer of infant buggies and one of the leading bicycles producers in Europe.