| Hay Island | |
| Map: | Australia Tasmania |
| Map Width: | 280 |
| Map Relief: | 1 |
| Label: | Hay Island |
| Label Position: | left |
| Location: | South western Tasmania |
| Coordinates: | -43.36°N 145.94°W |
| Archipelago: | Swainson Islands Group |
| Area Ha: | 1.85 |
| Elevation M: | 78 |
| Country: | Australia |
| Country Admin Divisions Title: | State |
| Country Admin Divisions: | Tasmania |
| Country Admin Divisions Title 1: | Region |
| Country Admin Divisions 1: | South West |
| Population: | Unpopulated |
The Hay Island is an unpopulated island located close to the south-western coast of Tasmania, Australia. Situated near where the mouth of Port Davey meets the Southern Ocean, the 1.85ha island with an elevation of above sea level, is part of the Swainson Islands Group, and comprises part of the Southwest National Park and the Tasmanian Wilderness World Heritage Site.[1] [2]
The island is part of the Port Davey Islands Important Bird Area, so identified by BirdLife International because of its importance for breeding seabirds.[3] Recorded breeding seabird and wader species are the short-tailed shearwater (7500 pairs) and fairy prion (1-2000 pairs).[2]