The Nyuya (Russian: Нюя; Yakut: Ньүүйэ, Ñüüye) is a river in Sakha, Russia. It is a left tributary of the Lena. The length of the river is 798 kilometres. The area of its basin is 38,100 square kilometres.
The Nyuya has its source in the Lena Plateau and flows south of the course of the Peleduy. In its lower course it flows to the west of the Derba as it reaches the Lena floodplain and flows slowly, meandering in a swampy area. Finally it meets the Lena 2,420 kilometres from its mouth. There are over 600 lakes in the river basin.
