The Arrondissement of Nivelles (; ) is an arrondissement in Wallonia and Belgium. It is the only arrondissement in the province of Walloon Brabant, and is coterminous with it. Before 1995, it was one of three arrondissements in the Province of Brabant. It is both an administrative and a judicial arrondissement, both having the same borders as the province. Municipalities The Administrative Arrondissement of Nivelles consists of the following 27 municipalities: Beauvechain Braine-l'Alleud Braine-le-Château Chastre Chaumont-Gistoux Court-Saint-Étienne Genappe Grez-Doiceau Hélécine Incourt Ittre Jodoigne La Hulpe Lasne Mont-Saint-Guibert Nivelles Orp-Jauche Ottignies-Louvain-la-Neuve Perwez Ramillies Rebecq Rixensart Tubize Villers-la-Ville Walhain Waterloo Wavre See also Dyle (department) References Arrondissements of Walloon Brabant