The Baky (, Bakı) is a river in the Sakha Republic (Yakutia), Russia. It is one of the northern tributaries of the Yana. The river has a length of 172 km and a drainage basin area of 3020 km2. The river flows north of the Arctic Circle. Its basin falls within Verkhoyansky District.

Course

The Baky is a left tributary of the Yana. It has its sources in the northwestern slopes of the Khayrdakh Ridge (Хайырдахский кряж), part of the Kular Range of the Verkhoyansk system. The river flows first northeastwards, skirting the mountain area. It meanders within a wide valley heading in an eastern direction in its lower course. Osokhtokh village is located by the banks of the Baky in its last stretch, where the river meanders very strongly. Near the left bank of the Yana the Baky divides into three branches, joining the river 479 km from its mouth.

Tributaries

The main tributaries of the Baky are the 35 km long Tulluk (Туллук), the 33 km long Yuyuteer (Ююттээр) and the 33 km long Tirekhteekh (Тирэхтээх) on the right, as well as the 45 km long Chyuyompe-Salaa (Чюёмпэ-Салаа) and the 79 km long Kharyly-Salaa (Харылый-Салаа) on the left. There are 80 lakes in the river basin. The river is frozen between late September or early October and late May or early June.