The Grand River (Grande-Riviere in French and O:se Kenhionhata:tie in Mohawk) is a large river in southwestern Ontario, Canada. From its source near Wareham, Ontario, it flows south through Grand Valley, Fergus, Elora, Waterloo, Kitchener, Cambridge, Paris, Brantford, Caledonia, and Cayuga before emptying into the north shore of Lake Erie south of Dunnville at Port Maitland.