穆尔德河（德语：Mulde）位于德国萨克森州和萨克森-安哈尔特州，全长124公里，最终在德绍注入易北河。

The Mulde (German pronunciation:[ˈmʊldə]) is a river in Saxony and Saxony-Anhalt, Germany. It is a left tributary of the Elbe and is 124 kilometres (77 mi) long.

The river is formed by the confluence, near Colditz, of the Zwickauer Mulde (running through Zwickau) and the Freiberger Mulde (with Freiberg on its banks), both rising from the Ore Mountains. From here the river runs northwards through Saxony (Grimma, Wurzen, Eilenburg, Bad Düben) and Saxony-Anhalt (Jeßnitz and Dessau, the old capital of Anhalt). The Mulde flows into the Elbe 3 kilometres (2 mi) north of Dessau.