The Saidenbach Dam () is a dam in the German state of Saxony. Its reservoir supplies drinking water to Chemnitz and, in conjunction with the Central Ore Mountain Dam System (Talsperrensystem Mittleres Erzgebirge) and its other dams - Neunzehnhain I und II and Einsiedel - contributes to the supply of the region covered by the South Saxony Long Distance Water Association (Zweckverbandes Fernwasser Südsachsen).