Ruisbroek is a village in the municipality of Sint-Pieters-Leeuw, in the Belgian province of Flemish Brabant. Previously a separate municipality, it became a deelgemeente of Sint-Pieters-Leeuw in 1977. Due to its proximity to the Brussels Capital Region, the Brussels-Charleroi Canal, the Zenne river, the railway Brussels—Mons—Quévy and the Brussels outer ring, the ward is heavily urbanised. Ruisbroek has a railway station along the line Leuven—Braine-le-Comte.