Brunn or Brünn is a common German place-name or place-name element which originally references a well, fountain, or source of a stream. It may refer to:

• Brunn, Mecklenburg-Vorpommern, a municipality in Mecklenburg-Vorpommern
• Brunn (Sachsen), a municipality
• Brünn, Thuringia, a municipality in Thuringia
• Brunn, Nuremberg, an exclave of Nuremberg
• Brunn, Upper Palatinate, a town in Bavaria

• Bad Fischau-Brunn, Lower Austria
• Brunn am Gebirge, a town in Lower Austria, south of Vienna
• Brunn an der Wild, a town in Lower Austria
• Brunn im Felde, part of the municipality Gedersdorf in Lower Austria
• Johnsdorf-Brunn, a municipality in Styria
• Pölfing-Brunn, a municipality in Styria

• Brunn, a village in the Swedish urban area of Hedesunda
• Brunn, Sweden, in Värmdö Municipality, Stockholm County
• Sätra brunn, a locality situated in Västmanland County

• Brünn, the German form of the Moravian city Brno in Czechia

• Brunn, German name for the village Bezrzecze, Police County, in north-western Poland

• Weißbrunn, German name for the Hungarian urban area Veszprém, north of Lake Balaton

• Brunn (surname)
• Brunn & Company, American coachbuilder founded by Hermann A. Brunn (1874-1941) in Buffalo, New York

See also Brunning