The Chaya (Russian: Чая) is a left tributary of the Ob river in Russia.

[2] The Chaya is formed by the confluence of the 320 km (200 mi) long Parbig and the 348 km (216 mi) long Bakchar rivers.

The basin of the river is located in the Chainsky and Kolpashevsky districts of Tomsk Oblast.

The main tributaries of the Chaya are the 179 km (111 mi) long Nyursa (Нюрса) on the left, as well as the 430 km (270 mi) long Iksa (Икса) on the right.

This article related to a river in Siberia is a stub.