The Freiberger Mulde (German pronunciation: [ˈfʁaɪbɛʁɡɐ ˈmʊldə]) is a river in Saxony, Germany. It is a right tributary of the Mulde and 124 km in length.
The source of the river is in the Ore Mountains, near Moldava, in the Czech Republic. It runs northwest, crossing the border with Germany after a few km, to Freiberg (hence the name), and further northwest through Nossen, Döbeln and Leisnig. A few km north of Colditz, the Freiberger Mulde is joined by the Zwickauer Mulde to form the Mulde. The Mulde is a tributary of the Elbe.