Sint-Pieters-Leeuw is a municipality in the province of Flemish Brabant, in the Flemish region of Belgium. The municipality comprises the towns of Oudenaken, Ruisbroek, Sint-Laureins-Berchem, Sint-Pieters-Leeuw proper and Vlezenbeek. Sint-Pieters-Leeuw is located just outside the Brussels-Capital Region, in the Payottenland. The municipality is a blend of parks, castles, meadows and gardens with the Coloma park as its green heart.