| Beslen Island | |
| Map: | Antarctic Peninsula#Antarctica |
| Location: | Antarctica |
| Coordinates: | -63.2217°N -62.1825°W |
| Archipelago: | South Shetland Islands |
| Population: | Uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty System |
Beslen Island (bg|остров Беслен|ostrov Beslen, pronounced as /bg/) is the rocky island off the northwest extremity of Low Island in the South Shetland Islands extending 240 m in east-west direction and 90 m wide.
The feature is named after the settlement of Beslen in Southwestern Bulgaria.
Beslen Island is located at -63.2217°N -62.1825°W, which is 1.67 km northeast of Cape Wallace and 840 m north of Prisad Island. British mapping in 2009.