Antwerp (ănˈtwûrp) [key], Du. Antwerpen, Fr. Anvers, province (1991 pop. 1,605,167), 1,104 sq mi (2,859 sq km), N Belgium, bordering on the Netherlands in the north. Antwerp (the provincial capital) and Mechelen are the chief cities. The province is largely a flat, cultivated plain, drained by the Scheldt River and its tributaries and served by the Albert Canal. It is mostly Dutch-speaking and was part of the duchy of Brabant.