| Bytantay | |
| Source1 Location: | Verkhoyansk Range |
| Mouth: | Yana |
| Mouth Coordinates: | 68.7617°N 134.4214°W |
| Subdivision Type1: | Country |
| Length: | 586km (364miles) |
| Source1 Elevation: | 1280m (4,200feet) |
| Mouth Elevation: | 81m (266feet) |
| Discharge1 Avg: | 153m3/s |
| Basin Size: | 40200km2 |
The Bytantay (Russian: Бытантай; Yakut: Бытантай, Bıtantay) is a river in the Republic of Sakha in Russia. It is a left hand tributary of the Yana, and is 620km (390miles) long, with a drainage basin of 40200km2.[1]
The river begins in the eastern flank of the Verkhoyansk Range at an elevation of 1280m (4,200feet). It heads roughly northeast with the Kular Range to the northwest and then joins river Yana from the left from its mouth. There are more than two thousand lakes in the basin of the Bytantay.[2]
The main tributaries of the Bytantay are Billah and Tenki on the right; and Khobol, Achchygy-Sakkyryr, Ulakhan-Sakkyryr and Kulgaga-Suoh on the left. The Ulakhan-Sakkyryr joins the Bytantay a short distance to the east of Batagay-Alyta.