Black River may refer to several rivers by that name in the province of Ontario, Canada: * Cochrane District * the Black River (Abitibi River), a tributary of the Abitibi River * the Black River (Bodell River), a tributary of the Bodell River, itself a tributary of the Kesagami River. * The Black River (Hastings County) in Hastings County, which joins the Moira River near Tweed, Ontario. * The Black River (Kenora District) in Kenora District, Ontario, which flows into the Lake of the Woods * Simcoe County: * The Black River in Simcoe County flows south and west from the Haliburton County to the Severn River near Washago, about a mile downstream of the Severn River's source at Lake Couchiching. It is a common misconception that the river flows into Lake Couchiching, which is not the