The IHO limits of the Atlantic Ocean

This is a list of islands in the Atlantic Ocean, the largest of which is Greenland. Note that the definition of the ocean used by the International Hydrographic Organization (IHO) excludes the seas, gulfs, bays, etc., bordering the ocean itself.[1] Thus, for instance, not all of the islands of the United Kingdom are actually in or bordering on the Atlantic. For reference, islands in gulfs and seas are included in a separate section. Oceanic islands are formed by seamounts rising from the ocean floor with peaks above the surface of the ocean and are not parts of continental tectonic plates.

List by subregion

North Atlantic Ocean




South Atlantic Ocean

Antarctic region

In gulfs and seas

This list is incomplete; you can help by adding missing items. (July 2016)

Within the Caribbean Sea:

Within the Gulf of Guinea:

Within the Greenland Sea:

Within the Norwegian Sea:

Within the Gulf of St. Lawrence:


See also


  1. ^ "Limits of Oceans and Seas, 3rd edition" (PDF). International Hydrographic Organization. 1953. Archived from the original (PDF) on 8 October 2011. Retrieved 29 December 2020.