Walloon Brabant (Dutch:) is a province of Wallonia in Belgium. It borders on (clockwise from the North) the province of Flemish Brabant (Flemish Region) and the provinces of Liège, Namur and Hainaut (Wallonia). Its capital is Wavre. It has an area of 1,093 km² and contains only one administrative district (arrondissement in French), the Arrondissement of Nivelles, with 27 municipalities.
Walloon Brabant was created in 1995 when the former Province of Brabant was split into three parts: two new provinces, Walloon Brabant and Flemish Brabant; and the Brussels Capital Region, which no longer belongs to any province. The split was made to accommodate the federalisation of Belgium in three regions (Flanders, Wallonia and Brussels).
The provincial population was recorded at 347,423 in January 1999, giving a population density of 318 inhabitants / km²