Map - Woluwe-Saint-Lambert (Sint-Lambrechts-Woluwe)

Woluwe-Saint-Lambert or Sint-Lambrechts-Woluwe (Dutch, ) is one of the 19 municipalities of the Brussels-Capital Region, Belgium. In common with all of Brussels' municipalities, it is legally bilingual (French–Dutch). In French, it is often spelt Woluwé-Saint-Lambert (with an acute accent on the first e) to reflect the Frenchified pronunciation of what was originally a Dutch place name, but the official spelling is without an accent. The Woluwe stream, from which it takes its name, flows through the municipality.

, the municipality had a population of 58,541 inhabitants. The total area is 7.29 km2, which gives a population density of 8018 PD/km2. It is a prosperous residential area, with a mixture of flats and detached, semi-detached, and terraced houses, often compared to Uccle, another affluent Brussels municipality, as well as the 14th or 17th arrondissement in Paris.

The neighbouring municipality of Woluwe-Saint-Pierre also lies within the Brussels-Capital Region, while the former municipality of Sint-Stevens-Woluwe (Woluwe-Saint-Etienne in French) has been merged with three other municipalities (Zaventem, Nossegem and Sterrebeek) to form the municipality of Zaventem, which is in the province of Flemish Brabant in Flanders.

Woluwe hosts the medical faculties of the Université catholique de Louvain (UCLouvain) and its hospital, the Cliniques universitaires Saint-Luc on the UCLouvain Brussels Woluwe campus, as well as several shopping areas, notably the Avenue Georges Henri/Georges Henrilaan and the Woluwe Shopping Center. Some of the municipality's major roads are named after prominent 20th-century Belgian statesmen, such as the prestigious Avenue de Broqueville/De Broquevillelaan and the Avenue Paul Hymans/Paul Hymanslaan. Line 1 (formerly line 1B) of the Brussels Metro runs under these roads.