Nivelles (; Dutch: Nijvel, ) is a Walloon city and municipality located in the Belgian province of Walloon Brabant. The Nivelles municipality includes the old communes of Baulers, Bornival, Thines, and Monstreux.
The Nivelles district includes all the municipalities in Walloon Brabant.
Its Collegiate Church of Saint Gertrude has been classified as a Major Heritage of Wallonia.
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