Zhaltyr (Kazakh: Жалтыр) is an endorheic lake in Akkuly District, Pavlodar Region, Kazakhstan.

[1] Zhaltyr lake is located close to the southern end of Malybay village and about 66 kilometers (41 mi) west of the Russia-Kazakhstan border.

Akkuly, the district capital, lies 41 kilometers (25 mi) to the southwest.

[2] The lake has an elongated shape, stretching roughly from southeast to northwest for less than 9 kilometers (5.6 mi).

The lake is shallower than its eastern neighbor and its water is harder and has a higher salinity.