| Hay Island | |
| Location: | Northern Australia |
| Area Km2: | 0.42 |
| Country: | Australia |
| Country Admin Divisions Title: | State |
| Country Admin Divisions: | Queensland |
Hay Island is a 10 ha coral cay that is part of the Great Barrier Reef Marine Park west of Cape Melville, Queensland, Australia. It lies east of Coen in the Claremont Isles. It is part of the Islands North of Port Stewart Important Bird Area.[1] It is around 42 hectares or 0.42 square km in size.[2]