Saumalkol (; ) is a salt lake located in northern part of Karkaraly District, Karaganda Region, Kazakhstan.
The lake is partly surrounded by agricultural fields, with the nearest inhabited location being the town of Terekty, situated to the east-southeast.
Saumalkol is an endorheic lake located in the central Kazakh Uplands. It lies to the south of Zheltau, to the northeast of the northeastern end of Lake Karasor and to the north of Lake Balyktykol. The southeastern shore of the lake is characterized by steep cliffs reaching up to in height.
The lake is shallow, with a maximum depth of and its waters are salty and bitter, containing iodine, fluorine, bromine and boron. The bottom of the lake is muddy.
Saumalkol is primarily fed by snow and groundwater. Two springs flow from the north into the lake, and the shores are muddy with some areas overgrown by reeds. Additionally, two small islets are located near the northwestern shore.