Korsis Island (Bulgarian: остров Корсис, romanized: ostrov Korsis, IPA:[ˈɔstrofˈkɔrsis]) is the rocky island lying 150 m off the northwest coast of Snow Island in the South Shetland Islands, Antarctica. It extends 300 m in southeast-northwest direction and 180 m wide. The feature is named after the Bulgarian military commander Korsis, 9th century.
Antarctic Digital Database (ADD). Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly upgraded and updated