The Shellback Island, an oceanic island, is approximately 4 kilometres (2.5 mi) northwest of Darby Bay, off Wilsons Promontory in Victoria, Australia.

[1] The island, to the mean low-water mark, is part of the Wilsons Promontory National Park[2] and is proclaimed as a Remote and Natural Area under the National Parks Act.

The surrounding waters to a distance of 300 m from the mean low-water mark are part of Wilsons Promontory Marine Park.

[3]: 1 [4] The island is part of the Wilsons Promontory Islands Important Bird Area, identified as such by BirdLife International because of its importance for breeding seabirds.

This article about a location in Gippsland (region) is a stub.