Kazy (Kazakh: Қазы; Russian: Казы) is a salt lake in Akkuly District, Pavlodar Region, Kazakhstan.

The lake is located 1.5 kilometers (0.93 mi) to the south of Kazy village, 25 kilometers (16 mi) to the northwest of Malybay, about 70 kilometers (43 mi) west of the Russia-Kazakhstan border. Akkuly, the district capital, lies 30 kilometers (19 mi) to the southwest.

Kazy is part of the Irtysh basin. It lies in a tectonic depression of the Kulunda Plain. Lake Borli is located 11 kilometers (6.8 mi) to the northwest, Kyzyltuz 6 kilometers (3.7 mi) to the ESE, and Seiten 22 kilometers (14 mi) to the north.

The shape of the lake is roughly oval. Compared to neighboring lakes it is relatively deep and displays a bluish-green hue. The eastern and northwestern shores are flat and swampy, but the southern coast is rocky.

Lake Kazy is surrounded by steppe vegetation. The water is salty and has a high mineralization. It is not suitable for watering livestock.

• List of lakes of Kazakhstan

• Media related to Kazy at Wikimedia Commons
• Hydrochemical Research and Geochemical Classification of Salt Lakes in the Pavlodar Region