| Uboynaya | |
| Source1: | Byrranga Mountains |
| Mouth: | Kara Sea |
| Mouth Coordinates: | 73.6481°N 82.3728°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 98km (61miles) |
| Basin Size: | 2280km2 |
The Uboynaya (ru|Убойная) is a river in the Taymyr Peninsula, Krasnoyarsk Krai, Russian Federation. Its source is in the Byrranga Mountains.It flows across desolate tundra regions into the Kara Sea. It is long, and has a drainage basin of . The lichen Dactylina arctica is common and abundant in the area.[1]
The Uboynaya freezes up in late September or early October and stays under the ice until June. In the short summer the area is a breeding ground for certain birds, like the dunlin.[2]
In 1922, while leading a geological expedition, Nikolay Urvantsev found abandoned skis at the mouth of the Uboynaya River. They belonged to Roald Amundsen's 1919 Arctic expedition's ill-fated crew members Peter Tessem and Paul Knutsen.[3] This river is now within the Great Arctic State Nature Reserve, the largest nature reserve of Russia and one of the biggest in the world.