The Shire of Southern Grampians is a local government area in the Barwon South West region of Victoria, Australia, located in the south-western part of the state. It covers an area of 6,652 square kilometres (2,568 sq mi) and, at the 2011 census, had a population of 16,359. It includes the towns of Coleraine, Hamilton, Dunkeld and Penshurst.