DORNBIRN, or Dornbühben, a straggling but well-built township of Austria, in Tyrol, about six miles S. of Bregenz, situated on the right bank of a stream known as the Dornbirn Ach, which flows into the Lake of Constance. It has upwards of 8000 inhabitants, ranks as the principal market-place in the Vorarlberg, and carries on iron and copper smelting and the manufacture of cotton cloth and worked muslin.