The Heiberg Islands, spelt Geyberg, Gejberg or Geiberg (Russian: острова Гейберга; ostrova Geyberga or also острова Акселя Гейберга) is a group of four small islands covered with tundra vegetation and with scattered stones on their shores.

They lie in the Kara Sea, between the bleak coast of Siberia's Taymyr Peninsula and Severnaya Zemlya.

The sea surrounding the Heiberg Islands is covered with fast ice in the winter, which is long and bitter, and the climate is severe.

The surrounding sea is obstructed by pack ice even in the summer, so that these islands are connected with the mainland for most of the year.

A Soviet polar meteorological station was established on Heiberg in 1940 to aid navigation of the Northern Sea Route.