| Chaya | |
| Other Name: | Чая |
| Mouth: | Ob |
| Mouth Coordinates: | 58.2826°N 82.6266°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 194km (121miles) |
| Basin Size: | 27200km2 |
| Pushpin Map: | Russia Tomsk Oblast |
| Pushpin Map Caption: | Mouth location in Tomsk Oblast, Russia |
The Chaya (Russian: Чая) is a left tributary of the Ob river in Russia.[1] The river is long and has a catchment area of .
The Chaya is formed by the confluence of the 320km (200miles) long Parbig and the 348km (216miles) long Bakchar rivers. It flows in a roughly northern or northeastern direction along its course. Finally it meets the left bank of the Ob 2403km (1,493miles) from the Ob's mouth. The basin of the river is located in the Chainsky and Kolpashevsky districts of Tomsk Oblast.
The main tributaries of the Chaya are the 179km (111miles) long Nyursa (Нюрса) on the left, as well as the 430km (270miles) long Iksa (Икса) on the right.[2]