The Fitzroy Islands comprise a group of four rocky islets that lie within the upper reaches of Payne Bay in Port Davey, an oceanic inlet, located in the south west region of Tasmania, Australia. The islands have a combined area of approximately 0.18 hectares (0.44 acres) and are contained with the Southwest National Park, part of the Tasmanian Wilderness World Heritage Site and the Port Davey/Bathurst Harbour Marine Nature Reserve.