Shalkarkol (; ) is a salt lake in Bayanaul District, Pavlodar Region, Kazakhstan.
The lake lies about to the southeast of Zhanatilek in a sparsely inhabited area.
Shalkarkol lies in a tectonic depression of the Kazakh Uplands to the north of the Zheltau Massif. A narrow landspit in the central zone almost divides the lake in two parts. Shalkarkol is the largest of the lakes of the area. Now abandoned Zheltau village was located barely to the south of the southern lakeshore.
River Tokzak, an intermittent stream, flows into the lake from the east. Smaller lake Bozshakol lies to the northeast of the northeastern end of the lake. Shalkarkol is frozen between November and March.