Beersel (Dutch: [ˈbeːrsəl] ⓘ) is a municipality in the province of Flemish Brabant, in the Flemish region of Belgium, 12 kilometres (7.5 mi) south-west of the centre of Brussels.

The municipality comprises the towns of Alsemberg, Beersel proper, Dworp, Huizingen and Lot.

[3] Beersel is perhaps best known for Beersel Castle, built between 1300 and 1310 by Jean II, Duke of Brabant, as a defense for Brussels.

Guillaume Dufay, a notable 15th-century Franco-Flemish composer, was likely born in Beersel.

[4] In terms of gastronomy, Beersel is known for its boterham met plattekaas en radijzen (sandwich with white cheese and radishes), usually served with a geuze beer, and for its mandjeskaas (literally 'basket cheese'), which is a white cheese stored in little baskets.