The North West Mount Chappell Islet, part of the Badger Group within the Furneaux Group, is a 7,100-square-metre (76,000 sq ft) unpopulated mainly granite islet, in Bass Strait, lying west of the Flinders and Cape Barren islands, Tasmania, south of Victoria, in south-eastern Australia. The island is located within a conservation area and is part of the Chalky, Big Green and Badger Island Groups Important Bird Area.