| Tambra Island | |
| Map: | Antarctica#Antarctic Peninsula |
| Location: | Antarctica |
| Coordinates: | -65.4347°N -65.35°W |
| Archipelago: | Biscoe Islands |
| Population: | Uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty System |
Tambra Island (Bulgarian: остров Тъмбра|ostrov Tambra, in Bulgarian pronounced as /ˈɔstrof ˈtɤmbrɐ/) is a mostly ice-covered island in the Pitt group of Biscoe Islands, Antarctica. The feature is 1.17 km long in southwest-northeast direction and 700 m wide, and is separated from the adjacent Jingle Island to the northeast by a 60 m wide passage.
The island is named after Tambra Hill in Southern Bulgaria.
Tambra Island is located at -65.4347°N -65.35°W, 700 m northeast of Weller Island and 730 m east-southeast of Krivus Island. British mapping in 1971.