Lake Ezerische (Belarusian: возера Езярышча, romanized: vozera Jeziaryšča; Russian: озеро Езерище, romanized: ozero Yzerishche) is a lake in Haradok District, Vitebsk Region, Belarus.

It is situated at the Belarus–Russia border, neighboring Pskov Oblast in Russia.

In 1959, on the river flowing out of the lake, a hydroelectric power plant was built.

This led to the raising of the water level (as the lake began to function as a reservoir).

Raising the water level leads to erosion of its banks.