Zhalanash (Kazakh: Жалаңаш) is a salt lake in the Moiynkum District, Jambyl Region, Kazakhstan.

Ulanbel village is located 8 kilometers (5.0 mi) to the northwest. The lake basin is used as a seasonal grazing ground for local cattle.

Zhalanash lies at the northern edge of the Moiynkum Desert, in the lower Chu river basin. It is located less than 3 kilometers (1.9 mi) to the south of the Chu river channel, and 55 kilometers (34 mi) downriver from larger lake Kokuydynkol. The shores of the lake are low and flat.

Zhalanash is known as a "dead lake" (Kazakh: тұйық көл) in Kazakh. Its waters freeze at the end of December and thaw at the end of March. On average the water level rises right after the melting of the snows in the spring and decreases in the summer.

• List of lakes of Kazakhstan

• Media related to Zhalanash (lake) at Wikimedia Commons
• Chu-Talas, Kazakhstan
• Special feature of the Journal Sandgrouse: Proceedings of the International Conference ‘Advancing the Conservation of the Great Bustard in Asia’.