East Ongul Island is an island, 1 mile (1.6 km) long, lying immediately east of the north part of Ongul Island at the east side of the entrance of Lutzow-Holm Bay. This island was originally mapped as a part of Ongul Island by Norwegian cartographers who worked from air photos taken by the Lars Christensen Expedition, 1936-37. A strait separating this island from Ongul Island was discovered in 1957 by the Japanese Antarctic Research Expedition (JARE). They named this small island for its position with relation to Ongul Island.
This article incorporates public domain material from the United States Geological Survey document "East Ongul Island" (content from the Geographic Names Information System).