The Chanva is a river in Perm Krai, Russia, a left tributary of the Yayva. It is 70 kilometres (43 mi) long. The area of its drainage basin is 733 square kilometres (283 sq mi). It begins at the confluence of rivers Tsenva and Rassokha, on the north slope of mountain range Bely Spoy. It is a mountain river with significant changes of elevation between source and mouth. It flows in a deep rocky valley. The mouth is downstream of the settlement Verh-Yayva. The most important of its tributaries, all small, are:Left: Kospash, Kostanok, Vetos, Stepanovka; Right: Anyusha, Berezovka.