Kazym

The Kazym is a river in Beloyarsky District, Khanty-Mansi Autonomous Okrug, Russia. It is long, with a drainage basin of. Its average discharge is.
The town of Beloyarsky is along the Kazym.

Course

The Kazym is a right tributary of the Ob. Its sources are in the Siberian Uvaly. It flows through the northern part of the West Siberian Plain meandering across a very swampy valley. There are numerous lakes in its basin, including the relatively large Sorum-Lor and the Saran-Kho-Lor. The Kazym river is fed mainly by snow. It freezes in early November and begins to thaw in late May.

Tributaries

The main tributaries of the Kazym are the long Amnya, the long Lykhn and the long Pomut on the left, as well as the long Sorum on the right.