Breitenstein may refer to: Breitenstein, Lower Austria. Breitenstein, Saxony-Anhalt, a municipality in Germany. Breitenstein (mountain), a mountain in the Bavarian Alps. Breitenstein (Swabian Alb), a mountain in Baden-Württemberg, Germany. Breitenstein, a small town in Weil im Schönbuch, Baden-Württemberg, in Germany.