Watermael-Boitsfort (French) or Watermaal-Bosvoorde (Dutch) is one of the nineteen municipalities located in the Brussels-Capital Region of Belgium.

On 1 January 2004 the municipality had a total population of 24,298 (11,179 males and 13,119 females). The total area is 12.93 km² which gives a population density of 1,878.76 inhabitants per km².

Official Site Gestion Municipale de Watermael-Boitsfort