| Chikoy | |
| Other Name: | Buriat: Сүхэ гол Mongolian: Цѳх гол Russian: Чикой |
| Pushpin Map: | Russia Buryatia |
| Pushpin Map Caption: | Location in Buryatia, Russia |
| Source1 Coordinates: | 49.6281°N 109.9397°W |
| Source1 Elevation: | ca 1800m (5,900feet) |
| Mouth Coordinates: | 51.0578°N 106.6511°W |
| Mouth Elevation: | 535m (1,755feet) |
| Subdivision Type1: | Countries |
| Subdivision Type2: | Federal subjects |
| Length: | 769km (478miles) |
| Basin Size: | 46200km2 |
The Chikoy (Russian: Чикой; Mongolian: Цѳх гол, Tsökh gol; Buriat: Сүхэ гол, Sükhe gol) is a river in Zabaykalsky Krai and the Buryat Republic in Russia, which partially flows along the Russia-Mongolia border. It is a right tributary of the Selenga. The length of the Chikoy is 769km (478miles). The area of its basin is 46200km2.[1]
The Chikoy has its source in the Chikokon Range, in the northern slopes of the Bystrinsky Golets peak.[2] Its valley forms the northwestern limit of the Khentei-Daur Highlands.[3] The river usually freezes over in late October or early November and stays icebound until April or early May. Its largest tributary is the Menza.