| Turnagain | |
| Local Name: | Buru Island |
| Map Size: | 220px |
| Location: | Northern Australia |
| Archipelago: | Torres Strait Islands |
| Waterbody: | Torres Strait |
| Area Km2: | 11.98 |
| Length Km: | 7.5 |
| Width Km: | 2.2 |
| Country: | Australia |
| Country Admin Divisions Title: | State |
| Country Admin Divisions: | Queensland |
| Country Admin Divisions Title 1: | Local government area |
| Country Admin Divisions 1: | Torres Strait Island Region |
Turnagain, also called Buru Island, is an island of the Western Islands region of the Torres Strait Islands archipelago, located in the northern section of Torres Strait, Queensland, Australia. Turnagain is located within the Torres Strait Island Region Local government area.
The island is located approximately south of the Western Province of Papua New Guinea. Turnagain is in length and up to wide. Its area of is heavily wooded. It is uninhabited and is the shape of an elongated teardrop.