Limburg is a province in Belgium. It is the easternmost of the five Dutch-speaking provinces that together form the Region of Flanders, one of the three main political and cultural sub-divisions of modern Belgium.

Limburg is located west of the river Meuse (Dutch Maas), upon which it borders the similarly named Dutch province Limburg. It also borders on the Wallonian province of Liège to the south, with which it also has historical ties.

Among these municipalities are the current capital Hasselt, the early medieval capital Borgloon, Genk, Diepenbeek (home to Hasselt University), and Tongeren, the only Roman city in the province and regarded as the oldest city of Belgium.