Kypshak (Kazakh: Қыпшақ), also known as Azhibeksor (Kazakh: Әжібайсор; Russian: Ажибексор),[1][2] is a salt lake in Nura District, Karaganda Region, Kazakhstan.

[3][4] In the 1930s Kypshak dried up and turned into a salt pan,[5] but in the following decades it filled up once more and on the USSR topographic map of 1989 it was marked again as a lake.

[4] Kypshak is a roughly triangular-shaped lake that lies at 318.9 meters (1,046 ft) above sea level.

It is located 23 kilometers (14 mi) to the southwest of Lake Tengiz and 12 kilometers (7.5 mi) to the west of lake Kerey.

111 kilometers (69 mi) long river Kypshak flows into the lake from the northwest, and smaller river Akkoshkar from the west.