Dint Island is a rocky island, 3 kilometres (1.5 nmi) long. Probably first seen from the air by the United States Antarctic Service, 1939–41, it was first mapped from air photos taken by the Ronne Antarctic Research Expedition, 1947–48, by D. Searle of the Falkland Islands Dependencies Survey in 1960. It was so named by the UK Antarctic Place-Names Committee because a distinctive cirque makes a dent, or dint, on the south side of the island.

Dint Island is located at (69°17′S 71°49′W / 69.283°S 71.817°W / -69.283; -71.817) and lies 4 kilometres (2 nmi) off the west side of Alexander Island within Lazarev Bay. The island lies roughly 6 miles (10 km) southeast of Umber Island.

• List of Antarctic and sub-Antarctic islands
• Umber Island
• Lazarev Bay

• Defense Mapping Agency 1992, Sailing Directions (planning Guide) and (enroute) for Antarctica, P 379

• Dint Island on USGS website
• Dint Island on SCAR website
• Dint Island on marineregions.org
• Dint Island distance calculator

 This article incorporates public domain material from "Dint Island". Geographic Names Information System. United States Geological Survey.