Wendar Island comprises a main unpopulated island and five immediately adjacent islets located close to the south-western coast of Tasmania, Australia. Situated some 2 kilometres (1.2 mi) south of where the mouth of Port Davey meets the Southern Ocean, the 5.8-hectare (14-acre) island and islets are one of the eight islands that comprise the Mutton Bird Islands Group. The Mutton Bird Island is part of the Southwest National Park and the Tasmanian Wilderness World Heritage Site.