🇧🇪 Overijse is a municipality in the province of Flemish Brabant, in Flanders, Belgium. The municipality comprises the town of Overijse, and the communities of Eizer, Maleizen, Jezus-Eik, Tombeek and Terlanen. Overijse is surrounded by an extensive woodlands (Zoniënwoud/Forêt de Soignes), with paths for walking and cycling.
Near Overijse there is a medium wave transmitter for the Belgian foreign radio service. Overijse has a traditional festival every year, held in August (Druivenfeesten). The festival commemorates the industry that shaped the area, namely cultivation of grapes (Dutch druiven). In 2010 it is held from August 21–28. The Druivenkoers Overijse is a single-day road bicycle race during the festival. The Vlaamse Druivencross is a December cyclo-cross classic race.
In 1952, Albert Lootvoet, a local brewer started brewing Leffe beer. The Leffe beers were brewed in Overijse from 1952 until 1977, when the Artois breweries bought out the local brewer.