|Lake type||Freshwater artificial lake|
|Basin countries||Belgium, Europe|
|Max. length||1 km|
|Max. width||0.25 km|
|Surface area||0.18 km²|
|Surface elevation||55 m|
Lake Genval (Dutch: Meer van Genval, French: Lac de Genval) is a scenic 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 beautiful, turn-of-the-century homes built during the Belle Époque. Situated to the lake's south lies the Château du Lac, an exquisite five-star hotel, restaurant, and bar.