Sholaksor (Kazakh: Шолақсор; Russian: Шолаксор) is a salt lake in the Yereymentau District, Akmola Region, and Aktogay District, Pavlodar Region, Kazakhstan.

[1] The lake lies 127 kilometers (79 mi) to the southwest of district capital Aktogay.

The border between the two regions runs from north to south close to the western lakeshore, with Akmola Region to the west, and most of the lake in Pavlodar to the east.

The Irtysh flows 130 kilometers (81 mi) to the northeast of the lake.

Sholaksor fills in spring when the snows of the surrounding basin melt.