page_title: List of islands of County Mayo
section_title: Smaller Offshore Islands
hierarchical_section_title: List of islands of County Mayo / Smaller Offshore Islands
caption_attribution_description: English: The Stags, Co Mayo.
context_page_description: This articles lists the islands of County Mayo, the mainland of which is part of the island of Ireland. Included in this list are named offshore and freshwater islands as recorded by Ordnance Survey Ireland or the Placenames Database of Ireland. Additionally, areas of ecological significance related to both offshore and freshwater islands, designated by the National Parks and Wildlife Service, are also listed.
  Although County Mayo has hundreds of offshore and freshwater islands, only a handful of islands and island groups are large enough to be distinguishable on a typical map of the county, namely Achill Island, Clare Island and Inishturk, along with the island clusters of Duvillaun, Inishkea, Clew Bay and the major loughs. There are over 100 islands which are greater than 10 acres in area. The largest island is Achill, which extends to 148 km², making it Ireland's largest offshore island.
  Due to its abundance of bays, inlets and offshore islands, Mayo has the longest coastline of any county in Ireland, at 1,168 km or approximately 21% of the total coastline of the State. The geology and geomorphology of the county and its islands is among the most varied and complex in Ireland.
context_section_description: County Mayo has hundreds of smaller islands and islets. Most of the county's offshore islands are located in Clew Bay, with smaller clusters located around the Achill archipelago, the west and south coasts of the Mullet Peninsula, and Blacksod Bay. The list below is not exhaustive, and includes named offshore islands that are either extensive (typically greater than 2 acres in area) or in someway locally significant or identifiable. 
  Unlike the above list, this list is in alphabetical order and does not include freshwater islands.
caption: The Stags
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