Baarle-Nassau (population: 6,474) is a town in the southern Netherlands, in the province of North Brabant. The municipality covers an area of 76.36 km².
The municipality of Baarle-Nassau also includes the following towns, villages and townships: Castelré, Ulicoten.
It is closely linked, with complicated borders, to the Belgian exclaves of Baarle-Hertog.