The Afgedamde Maas (Dammed-up Meuse) is a former distributary of the Maas River (French: Meuse) in the Dutch provinces of North Brabant and Gelderland. The Maas splits near Heusden with one channel flowing north until its confluence with the river Waal (the main distributary of the river Rhine) to form the Merwede, while the other channel (the Bergse Maas) continues west as the main distributary of the Maas.