Eibenstock Dam (German: Talsperre Eibenstock) near Eibenstock in the Ore Mountains, Germany, is the largest dam in the Free State of Saxony in terms of the height of the dam above the valley floor, and its reservoir is the largest in volume in Saxony.

 

The dam impounds the waters of the Zwickauer Mulde and supplies drinking water to the region of Chemnitz and Zwickau, as well as providing flood protection, delivering extra water during times of drought and, to a lesser extent, generating electricity from hydropower. Its dimensions make it the second largest drinking water reservoir in Germany's new federal states.