The Barwon South West is an economic rural region[1] located in the southwestern part of Victoria, Australia.

The region comprises two distinct and inter-connected sub-regions or districts: Greater Geelong and the Great South Coast.

[3] For the purposes of Australian federal elections for the House of Representatives, the Barwon South West region is contained within all or part of the electoral divisions of Corangamite,[4] Corio,[5] and Wannon.

[6] For the purposes of Victorian elections for the Legislative Assembly, the Barwon South West region is contained within all or part of the electoral districts of Bellarine, Geelong, Lara, Lowan, Polwarth, Ripon, South Barwon, and South-West Coast.

The region contains nine local government areas and one unincorporated area of Victoria, which are: The Barwon South West region contains the Brisbane Ranges, Cobboboonee, Great Otway, Lower Glenelg and Port Campbell national parks.