Entrance Island is a low island with an area of 6.1 ha in south-eastern Australia. It lies at the entrance to Macquarie Harbour in Western Tasmania. It contains a light beacon and jetty.
Recorded breeding seabird species are the little penguin (100 pairs) and short-tailed shearwater (1900 pairs). The metallic skink is present.
Coordinates: 42°12′S 145°12′E / 42.200°S 145.200°E