| Uda | |
| Map: | Selengerivermap.png |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Subdivision Type2: | Region |
| Subdivision Name2: | Buryatia |
| Subdivision Type3: | Districts |
| Subdivision Name3: | Yeravninsky DistrictKhorinsky DistrictZaigrayevsky DistrictUlan-Ude |
| Length: | 467km (290miles) |
| Discharge1 Avg: | 69.8m3/s |
| Source1 Location: | Vitim Plateau |
| Source1 Coordinates: | 52.5508°N 112.1936°W |
| Mouth: | Selenga |
| Mouth Coordinates: | 51.8325°N 107.5711°W |
| Basin Size: | 34800km2 |
| Tributaries Left: | Khudan |
The Uda (pronounced as /ru/;) is a river in the Buryat Republic, Russia. It is a right tributary of the Selenga, which it meets near the city Ulan-Ude. Its length is 467km (290miles), and it has a drainage basin of .
The Uda basin lies in the Tuguro-Chumikanskiy region. The word Uda is derived from the Yakut word ud, meaning "milk". The name was conferred on the river owing to a nearby milk-colored lake.[1]
The Uda is a prime habitat for the pink, chum, red, and coho salmons. Other fish species found in the Uda include the Siberian taimen, two forms of lenok, and Amur grayling. The river is especially important as it remains one of the last strongholds of taimen, which have dwindled in other Siberian rivers. Taimens grow to huge sizes here; specimens weighing 95kg (209lb) have been caught here.[1]