The Ukukit (Russian: Укукит) is a river in Yakutia (Sakha Republic), Russia.

Its drainage basin area is 5,000 square kilometres (1,900 sq mi).

[1] The river flows north of the Arctic Circle across a lonely, desolate area of the Olenyoksky District devoid of settlements.

It heads first eastwards and, about halfway down its course, it bends and flows roughly northeastwards.

Its longest tributary is the 70 kilometres (43 mi) long Kutuguna from the left.