| Rauchua | |
| Map: | Chukchi Sea5RAU.png |
| Mouth: | East Siberian Sea |
| Mouth Coordinates: | 69.4988°N 166.7196°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 323km (201miles) |
| Basin Size: | 15400km2 |
The Rauchua (Russian: Раучуа, also: Большая Бараниха Bolshaya Baranikha) is a river in Far East Siberia, Russia. It is long, and has a drainage basin of .
Remains of frozen mammoths have been found near the Rauchua.[1]
Its source is in the Ilirney Range.It passes through the sparsely populated areas of the Siberian tundra and flows northwards into the Kolyma Gulf, East Siberian Sea, not far west from Ayon Island.
The Rauchua and its tributaries belong to the Chukotka Autonomous Okrug administrative region of Russia.