奥苏加河是俄罗斯西北部的河流，位于特维尔州，属于伏尔加河流域的一部分，发源自瓦尔代高地，河道全长167公里，流域面积241平方公里，最终注入特维尔察河。

The Osuga River (Russian:река́ Осу́га) is a river in Selizharovsky, Kuvshinovsky, Torzhoksky, and Spirovsky Districts of Tver Oblast of Russia, a right tributary of the Tvertsa River. The Osuga is 167 kilometres (104 mi) long, and the area of its drainage basin is 2,410 square kilometres (930 sq mi). The town of Kuvshinovo is along the banks of the Osuga.