Kobeituz (Kazakh: Көбейтұз көлі) is a salt lake in Yereymentau District, Akmola Region Kazakhstan.

It lies at an altitude of 253 meters (830 ft) above sea level, 3.5 kilometers (2.2 mi) to the east of the eastern lakeshore of lake Teniz.

[2] This is likely because it is present in several other lakes around the world that have high salt concentrations and turn pink during warm months when the salinity is at its highest.

[3] The alga has different structures and appearances depending on the surrounding conditions, and in high-salinity environments like Lake Kobeituz it produces carotenoids that have a reddish hue.

Due to the high concentration of salt, the water of Kobeituz could keep a person afloat, as in the Dead Sea.