Lake Gileppe (French: Lac de la Gileppe, pronounced [lak də la ʒilɛp]) is located in Wallonia, in the east of Belgium, near the city of Verviers.

There is a 78 m high panoramic tower with a restaurant on the top to look at the lake and the landscape.

The water volume is 26,400,000 m³ and the area is 1,3 km2.