Kotyrkol (Kazakh: Қотыркөл) is a salt lake in Birzhan sal District, Akmola Region, Kazakhstan.

[1] Stepnyak town, the district capital, is located 5 kilometers (3.1 mi) to the NNE of the northern lakeshore.

[2][1] Kotyrkol lies at the northern end of the Kazakh Uplands and is part of the Irtysh basin.

It has an elongated shape oriented in a roughly southeast–northwest direction, with the wider southern part tapering towards the north.

[2][3] Reeds, such as Phragmites and Stipa, grow along the western shore of Kotyrkol.