The Peleduy (Russian: Пеледуй) is a river in Yakutia (Sakha Republic), Russia. It is the 22nd longest tributary of the Lena with a length of 398 kilometres and a drainage basin area of 14,300 square kilometres.
The river flows across a largely desolate area. Tolon village is located by the river in its middle course and the settlement of Peleduy is located by the Peleduy at the confluence with the Lena. There is rock salt mining and wood processing in the basin of the river. At Peleduy there is a shipping yard for shipbuilding, maintenance and overhaul.
The main fish species in the river are dace, pike, roach, perch, ide, valyok, tugun, bream and grayling.
