Derrinallum is a town in Victoria, Australia, located on the Hamilton Highway, in the Corangamite Shire. The town is the centre for the surrounding farming community and lies at the foot of Mount Elephant. Mount Elephant is a 380 m-high conical breached scoria cone formed by an dormant volcano.

The Shire of Corangamite 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 4,408 square kilometres (1,702 sq mi) and in June 2018 had a population of 16,140. It includes the towns of Camperdown, Terang, Cobden, Timboon, Port Campbell and Skipton. It was formed in 1994 from the amalgamation of the Town of Camperdown, Shire of Hampden, Shire of Heytesbury, and parts of the Shire of Otway, Shire of Mortlake and Shire of Warrnambool.