| Kostilka Island | |
| Map: | Antarctica#Antarctic Peninsula |
| Map Relief: | yes |
| Location: | Antarctica |
| Coordinates: | -65.0992°N -64.4144°W |
| Archipelago: | Wilhelm Archipelago |
| Area Ha: | 1.64 |
| Length M: | 213 |
| Width M: | 137 |
| Population: | uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty System |
Kostilka Island (Bulgarian: остров Костилка|ostrov Kostilka, in Bulgarian pronounced as /ˈɔstrof kosˈtiɫkɐ/) is the rocky island 213 m long in west–east direction and 137 m wide in the Myriad Islands group of Wilhelm Archipelago in the Antarctic Peninsula region. Its surface area is 1.64 ha.[1]
The feature is so named because of its shape supposedly resembling a fruit's stone ('kostilka' in Bulgarian), and in association with other descriptive names of islands in the area.[1]
Kostilka Island is located at -65.0992°N -64.4144°W, which is 3.35 km northwest of Flank Island, 3.47 km southeast of Final Island, and 6.74 km west-northwest of Vedel Islands. British mapping in 2001.
