The Great Southern Football League (GSFL) is an Australian rules football competition based in the Fleurieu Peninsula region of South Australia, Australia.

The founding clubs were Encounter Bay, Goolwa, Hindmarsh Valley, Port Elliot and Victor Harbour.

Since that time a number of clubs have formed part of the association, which itself changed its name to the Great Southern Football League.

Current member clubs include Willunga, which is one of the oldest football clubs in South Australia, tracing its history back to 1874.

List of premiership teams of Great Southern Football League.