| Tumanskaya | |
| Pushpin Map: | Russia Chukotka Autonomous Okrug |
| Pushpin Map Caption: | Location in the Chukotka Autonomous Okrug, Russia |
| Source1 Location: | Koryak Mountains |
| Mouth: | Bering Sea |
| Mouth Location: | Tymna lagoon, Gulf of Anadyr |
| Mouth Coordinates: | 64.0019°N 178.442°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 2680NaN0 |
| Source1 Elevation: | 8000NaN0 |
| Mouth Elevation: | 0m (00feet) |
| Basin Size: | 9270sqkm |
The Tumanskaya (Russian: Туманская) is a river in Far East Russia. It flows through the Anadyr Lowlands, a region of wetlands and tundra, and into the Bering Sea at the Tymna lagoon. It is long, and has a drainage basin of .
The Tumanskaya and its tributaries belong to the Chukotka Autonomous Okrug administrative region of Russia.
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.