Harley Island () is an island located in Franz Josef Land, Arkhangelsk Oblast, Russian Federation. This island is part of the Zichy Land subgroup of the central part of the archipelago.
This island was named after Scottish physician George Harley by English Arctic explorer Frederick Jackson.
Harley Island is a long and narrow island. It lies off Jackson Island's western shore. The island is quite flat, its highest point being only .
Fridtjof Nansen wintered on the island in 1895âÂÂ1896. Umberto Cagni and Prince Luigi Amedeo of Savoy camped on the island on 13 June 1900.