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.

[1] The Tumanskaya and its tributaries belong to the Chukotka Autonomous Okrug administrative region of Russia.

There is a small populated place in the area close to its mouth also called Tumanskaya.

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