Gränicher Island is a small island which is the northernmost of the Bennett Islands in Hanusse Bay, Antarctica. It was mapped from air photos obtained by the Ronne Antarctic Research Expedition (1947–48) and the Falkland Islands and Dependencies Aerial Survey Expedition (1956–57). It was named by the UK Antarctic Place-Names Committee for Walter H.H. Gränicher, a Swiss physicist who from 1954 made important investigations of the electrical and mechanical properties of ice in relation to its molecular structure.

• List of Antarctic and sub-Antarctic islands

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