Sisters Island is a small island with an area of 1.43 hectares (3.5 acres), off Sisters Beach on the northwest coast of Tasmania, south-eastern Australia.

Much of the island is covered with a dense canopy of Coprosma repens.

Recorded breeding seabird and wader species include little penguin, short-tailed shearwater, Pacific gull and sooty oystercatcher.

[1] L'Enterprise was a French schooner wrecked on the Island in 1802 or 1803.

This Tasmania geography article is a stub.