| Luna Island | |
| Map: | Antarctica#Antarctic Peninsula |
| Map Relief: | yes |
| Location: | Antarctica |
| Coordinates: | -66.3836°N -67.1617°W |
| Archipelago: | Biscoe Islands |
| Area Ha: | 6.55 |
| Length M: | 637 |
| Width M: | 165 |
| Population: | uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty System |
Luna Island (bg|остров Луна|ostrov Luna, pronounced as /bg/) is the partly ice-covered rocky island in the southwest part of Biscoe Islands, Antarctica, 637 m long in southwest-northeast direction and 165 m wide, and comprising two parts divided by a passage narrowing to 5 m. Its surface area is 6.55 ha.
The feature is named after Ines Luna Aguilar from the Chilean city of Punta Arenas for her logistic support for the Bulgarian Antarctic programme.
Luna Island is centred at -66.3836°N -67.1617°W,[1] which is 92 m west of Watkins Island and 223 m east of Belding Island. British mapping in 1976.