| Prosechen Island | |
| Map: | Antarctica#Antarctic Peninsula |
| Map Relief: | yes |
| Location: | Antarctica |
| Coordinates: | -62.6231°N -61.2956°W |
| Archipelago: | South Shetland Islands |
| Population: | uninhabited |
| Country: | Antarctica |
| Treaty System: | Antarctic Treaty System |
Prosechen Island (bg|остров Просечен|ostrov Prosechen, pronounced as /bg/) is the northern of two rocky islands in Smyadovo Cove on the west coast of Rugged Island in the South Shetland Islands. The area was visited by early 19th century sealers. It is named after the settlement of Prosechen in Northeastern Bulgaria.
First described by early 19th century sealers, the feature is 500m (1,600feet) long in east–west direction and 140m (460feet) wide.[1] The island is named after the settlement of Prosechen in Northeastern Bulgaria.[2]
Prosechen Island is located at -62.6231°N -61.2956°W, which is 1.04km (00.65miles) south of Cape Sheffield and 500m (1,600feet) north by east of Ugain Point. It is separated from Rugged Island to the north and Toledo Island to the south by 70m (230feet) and 60m (200feet) wide passages respectively. Spanish mapping took place in 1992 and Bulgarian mapping in 2009.[1]