The Credit River is a river in southern Ontario, which flows from headwaters above the Niagara Escarpment near Orangeville and Caledon East to empty into Lake Ontario at Port Credit, Mississauga. It drains an area of approximately 1,000 square kilometres (390 sq mi). The total length of the river and its tributary streams is over 1,500 kilometres (930 mi).

Port Credit is a neighbourhood in the south-central part of the City of Mississauga, Ontario, Canada, located at the mouth of the Credit River on the north shore of Lake Ontario. Its main intersection is Hurontario Street and Lakeshore Road, about 0.6 kilometres (0.37 mi) east of the river. Until 1974, Port Credit was an incorporated town. Its approximate boundaries are the Canadian National Railway to the north, Seneca Avenue to the east and Shawnmarr Road to the west. It had a population of 10,260 at the 2001 census.