Jan van Ruysbroeck (also known as Jan van den Berghe) was a Flemish architect of the early 15th century (the dates of his birth and death are unknown). His best known work was the belfry of the Gothic Hotel de Ville (town hall) of Brussels in Belgium. The building, which stands in the city's Grand Place, is widely regarded as a masterpiece of medieval European secular architecture. It was designed by Jacob van Thienen some time around 1402 and van Ruysbroek's tower was added between 1444-1463.

Other works by van Ruysbroeck include:

• the fountain at the Hospital of Our Lady in Oudenaarde (1443-1445);
• the tower of the Church of Ste-Gertrude, Leuven (Louvain), (completed 1453);
• part of the Church of St-Pierre, Anderlecht (1479-1485);
• probably the tower of the Church of Ste-Gudule, Brussels (1470-1485).