Kolva River (Russian: Колва) is a river in Nenets Autonomous Okrug and the Komi Republic in Russia. It is a right tributary of the Usa River of the Pechora basin. The length of the river is 546 km (339 mi). The area of its basin 18,100 km2 (7,000 sq mi). The Kolva River freezes up in late November and stays under the ice until mid-May.