South Huron is a municipality in the Canadian province of Ontario, located in the southern part of Huron County. It was formed by amalgamation of the townships of Stephen and Usborne with the Town of Exeter in 2001, in an Ontario-wide municipal restructuring imposed by the provincial government.

Huron County is a county of the province of Ontario, Canada. It is located on the southeast shore of its namesake, Lake Huron, in the southwest part of the province. The county seat is Goderich, also the county's largest community.