The Grand River, formerly known as the River Ouse, is a large river in Ontario, Canada. It lies along the western fringe of the Greater Golden Horseshoe region of Ontario which overlaps the eastern portion of southwestern Ontario, sometimes referred to as Midwestern Ontario, along the length of this river. From its source near Wareham, Ontario, it flows south through Grand Valley, Fergus, Elora, Waterloo, Kitchener, Cambridge, Paris, Brantford, Ohsweken, Six Nations of the Grand River, Caledonia, and Cayuga before emptying into the north shore of Lake Erie south of Dunnville at Port Maitland. One of the scenic and spectacular features of the river is the falls and Gorge at Elora.

Paris is a community located in the County of Brant, Ontario, Canada. It lies just northwest from the city of Brantford at the spot where the Nith River empties into the Grand River. Paris was voted "the Prettiest Little Town in Canada" by Harrowsmith Magazine. The town was established in 1850. In 1999, its town government was amalgamated into that of the County of Brant, ending 149 years as a separate incorporated municipality, with Paris as the largest population centre in the county.