Great Island (disambiguation)

Great Island is an island within Cork Harbour in Ireland.

Great Island may also refer to:

• Great Island (Newfoundland and Labrador), an island in Canada
• Great Island, Falkland Islands
• "The Great Island" another name for Madagascar
• Great Island (New Zealand), an island in Fiordland, New Zealand
• Manawatāwhi / Great Island, an island in the Three Kings Islands group of New Zealand
• Great Island or King's Island, an island of Enfield, Connecticut
• Great Island (Massachusetts), an island of Massachusetts