Akzhaykyn (Kazakh: Ақжайқын; Russian: Акжайкын) is a salt lake group in Sozak District, Turkistan Region, Kazakhstan.

[1] Akzhaykyn is one of the main lakes of the Ashchykol Depression.

[2][3][4] Akzhaykyn is located in the Ashchykol Depression, a largely flat arid region dominated by salt marshes and salt flats.

In years of sufficient rain the Chu river flows from the east into it.

The core lake is round and relatively deep, but the extensive cluster of shallower lakes surrounding it become dry after the flood season that follows the melting of the snows.