Blanche Rock is a 0.07 ha dolerite islet in south-eastern Australia.
It is part of the Actaeon Island Group, lying close to the south-eastern coast of Tasmania, at the southern entrance to the D'Entrecasteaux Channel between Bruny Island and the mainland.
It is part of the South Bruny National Park.
[1][2] Recorded breeding seabird and wader species are the Pacific gull, sooty oystercatcher and black-faced cormorant.
This Tasmania geography article is a stub.