Eagle Island is a 263-acre island in Penobscot Bay, Maine, between North Haven and Deer Isle, in Hancock County. It is not part of the nearby Town of Deer Isle but is an unincorporated territory of the state. The island was conveyed to Samuel Quin by John C. Gray on November 18, 1844, with the exception of a small lot containing Eagle Island Light, which Gray had previously deeded to the government. Quin also bought from Gray one-half of Fling Island and "all Farming Tools, hay and neat stock and sheep belonging to said John C.