The Tumanskaya River is a stream in Far East Siberia. It flows through a region of wetlands and tundra into the Bering Sea at the Anadyr Bay.
The Tumanskaya River and its tributaries belong to the Chukotka Autonomous Okrug administrative region of Russia.
Latitude: 64° N, Longitude: 177° 30' E
The sockeye salmon is common in its waters. Belugas are common in the Tumanskaya Lagoon.
There is a small populated place in the area close to its mouth also called Tumanskaya.
Coordinates: 64°00′N 177°30′E / 64.000°N 177.500°E