Bourtange (Dutch pronunciation: [ˌbuːrˈtɑŋə]; Gronings: Boertang) is a village with a population of 430 in the municipality of Vlagtwedde in the Netherlands. It is situated in the region Westerwolde in the east of the province of Groningen near the German border. Fort Bourtange was built in 1593 during the Dutch Revolt and was used until 1851. The star fort was restored to its mid-18th-century state in 1960 and it is currently an open-air museum.