|Type||Freshwater artificial lake|
|Max. length||1 km (0.62 mi)|
|Max. width||0.25 km (0.16 mi)|
|Surface area||18 ha (44 acres)|
|Surface elevation||55 m (180 ft)|
Lake Genval (Dutch: Meer van Genval, French: Lac de Genval) is a lake located in Belgium, southeast of Brussels near the Sonian Forest and the cities of Rixensart, Walloon Brabant and Overijse, Flemish Brabant. A popular vacation and holiday destination, the lake is surrounded by turn-of-the-century homes built during the Belle Époque. Situated on the lake's south is the Château du Lac, a five-star hotel, restaurant, and bar.