The Vozha (Russian: Во́жа) is a river in Ryazan Oblast, Russia. It is a right tributary of the Oka. It is 103 kilometres long, and its drainage basin covers 1,590 square kilometres .
The town of Rybnoye is situated by the Vozha.
In August 1378, Muscovite prince Dmitry Donskoy defeated a Mongol army in the Battle of the Vozha River.
