Big Sandy Petrel Island is an island game reserve with an area of 15.2 ha, in south-eastern Australia. It is part of the Petrel Island Group, lying in Bass Strait close to Walker and Robbins Islands in north-west Tasmania.
Recorded breeding seabird, shorebird and waterbird species include Little Penguin, Short-tailed Shearwater, Pacific Gull, Sooty Oystercatcher, Pied Oystercatcher and Cape Barren Goose. Tiger Snakes are present.[1]