The tram route 51 in Brussels, Belgium is a tram route operated by the STIB/MIVB, which connects the Heysel metro station in the City of Brussels to the Van Haelen stop in the municipality of Uccle. The route runs North-South, crossing the municipalities of the City of Brussels, Jette, Molenbeek-Saint-Jean, the City of Brussels again, Saint-Gilles, Forest and Uccle.