The Inva (Russian: Иньва) is a river in Perm Krai, Russia, a right tributary of the river Kama.^[1] It begins in the Upper Kama Upland near the border of Kirov oblast then flows through Komi-Permyak Okrug and into Kama Reservoir, forming Invensky Bay. The main tributaries are Velva and Kuva (left), Yusva (right).

The river is 257 kilometres (160 mi) long with a drainage basin of 5,920 square kilometres (2,290 sq mi).^[2] It is frozen from early November to late April. The town of Kudymkar is along the Inva River.

The name of the river is formed from the Komi-Permyak words “инь” (woman) and “ва” (water), which can be translated as “female water”.