Breitenbrunn is a community in the Ore Mountains in the district of Erzgebirgskreis in the Free State of Saxony in Germany.

The community consists of Breitenbrunn with Breitenhof, Carolathal, Halbemeile and Rabenberg, Antonsthal with Antonshöhe, Erlabrunn, Steinheidel and Fällbach as well as Rittersgrün and Tellerhäuser.

Even before Breitenbrunn’s founding there was over the site of the later settlement a wall with a watchtower, a moat and a small outer defence to defend the Schwarzenberg lordly domain at its southernmost point.

Of special historic importance is the Breitenbrunn Papermill found in the town, from which, among others, Johann Sebastian Bach got his notepaper.

Chosen as the location was the village’s upper end to make the walk for churchgoers from the neighbouring, parochially united community of Rittersgrün somewhat easier, especially in the winter months.