Wavre is a city and municipality of Wallonia, and the capital of the province of Walloon Brabant, Belgium. Wavre is in the Dyle valley. Most inhabi…Wavre is a city and municipality of Wallonia, and the capital of the province of Walloon Brabant, Belgium. Wavre is in the Dyle valley. Most inhabitants speak French as their mother tongue and are called "Wavriens" and "Wavriennes".