{{Short description|Collection of islands}} {{Redirect|Island chain|the strategy|Island chain strategy||Archipelago (disambiguation)}} {{Distinguish|arpeggio|a cappella}} {{Use dmy dates|date=April 2025}} {{More citations needed|date=April 2026}} [[File:Indonesia relief location map.jpg|thumb|upright=1.6|The Indonesian Archipelago, located in Asia and Oceania, is the largest archipelagic state in the world.]] [[File:Aegeansea.jpg|thumb|upright|The Aegean Sea with its large number of islands is the origin of the term ''archipelago''.]] [[File:MerguiArchipelagoMap.png|thumb|The Mergui Archipelago in Myanmar]] An '''archipelago''' ({{IPAc-en|ˌ|ɑːr|k|ə|ˈ|p|ɛ|l|ə|ɡ|oʊ|audio=en-us-archipelago.ogg}} {{respell|AR|kə|PEL|ə|goh}}),<ref>{{cite Dictionary.com|archipelago}}</ref> sometimes called an '''island group''' or '''island chain''', is a chain, cluster, or collection of islands. An archipelago may be in an ocean, a sea, or a smaller body of water. Examples of archipelagos include the Aegean Islands (the origin of the term ''archipelago''), the Canadian Arctic Archipelago, the Stockholm Archipelago, the Malay Archipelago (which includes the Indonesian and Philippine Archipelagos), the Lucayan (Bahamian) Archipelago, the Japanese archipelago, the Hawaiian Archipelago, and the Galapagos.
==Etymology== The word ''archipelago'' is derived from the Italian ''arcipelago'' (used as a proper name for the Aegean Sea), itself perhaps a deformation of the Greek Αιγαίον Πέλαγος.<ref>{{cite Dictionary.com|archipelago}}</ref><ref>Oxford English Dictionary, s.v. "archipelago (n.), Etymology", July 2023, [https://doi.org/10.1093/OED/4069383322]</ref> Usage later shifted to refer to the Aegean Islands (since the sea has a large number of islands). The erudite paretymology, deriving the word from Ancient Greek ἄρχι- (''arkhi-'', "chief") and πέλαγος (''pélagos'', "sea"), proposed by Buondelmonti, can still be found.<ref>Maltézou, Chryssa A., ''De la mer Égée à l'archipel: quelques remarques sur l'histoire insulaire égéenne'' In: Mélanges Hélène Ahrweiler Pt. 2 (1998) p. 464–465</ref>
==Geographic types== Archipelagos may be found isolated in large bodies of water or neighboring a large land mass. For example, Scotland has more than 700 islands surrounding its mainland, which form an archipelago.{{cn|date=March 2026}}
Depending on their geological origin, islands forming archipelagos can be referred to as ''oceanic islands'', ''continental fragments'', or ''continental islands''.<ref>Whittaker R. J. & Fernández-Palacios J. M. (2007) ''Island Biogeography: Ecology, Evolution, and Conservation''. New York, Oxford University Press</ref>
===Oceanic islands=== Oceanic islands are formed by volcanoes erupting from the ocean floor. The Hawaiian Islands and Galapagos Islands in the Pacific, and Mascarene Islands in the south Indian Ocean are examples.{{cn|date=March 2026}}
===Continental fragments=== Continental fragments are islands that were once part of a continent, and became separated due to natural disasters. The fragments may also be formed by moving glaciers which cut out land, which then fills with water. The Farallon Islands off the coast of California are examples of continental fragment islands.{{cn|date=March 2026}}
=== Coral cay archipelago === A coral cay archipelago is formed when ocean currents transport sediments that gradually build up on coral reefs. The Florida Keys are one example.<ref>{{Cite web |last=US Department of Commerce |first=National Oceanic and Atmospheric Administration |title=What is an archipelago? |url=https://oceanservice.noaa.gov/facts/archipelago.html |access-date=2025-11-24 |website=oceanservice.noaa.gov |language=EN-US}}</ref>
===Continental islands=== [[File:Острова_близ_Турку._Saaret._By_Victor_Belousov._-_panoramio.jpg|alt=|thumb|The Archipelago Sea with many islands in southwestern Finland]] Continental islands are islands that were once part of a continent and still sit on the continental shelf, which is the edge of a continent that lies under the ocean. The islands of the Inside Passage off the coast of British Columbia and the Canadian Arctic Archipelago are examples.{{cn|date=March 2026}}
===Artificial archipelagos=== Artificial archipelagos have been created in various countries for different purposes. Palm Islands and The World Islands in Dubai were or are being created for leisure and tourism purposes.<ref>{{cite web | last=McFadden | first=Christopher | title=7+ Amazing Facts About Dubai's Palm Islands | website=Interesting Engineering | date=22 December 2019 | url=https://interestingengineering.com/7-curious-facts-about-dubais-palm-islands | access-date=8 July 2020 |archive-url=https://web.archive.org/web/20220528112320/https://interestingengineering.com/7-curious-facts-about-dubais-palm-islands |archive-date=2022-05-28 |url-status=live}}</ref><ref>{{cite web | last=Wainwright | first=Oliver | title=Not the end of The World: the return of Dubai's ultimate folly | website=The Guardian| date=13 February 2018 | url=http://www.theguardian.com/cities/2018/feb/13/not-end-the-world-return-dubai-ultimate-folly | access-date=8 July 2020 |archive-url=https://web.archive.org/web/20250817130959/https://www.theguardian.com/cities/2018/feb/13/not-end-the-world-return-dubai-ultimate-folly |archive-date=2025-08-17 |url-status=live}}</ref> Marker Wadden in the Netherlands is being built as a conservation area for birds and other wildlife.<ref>{{cite web | last=Boffey | first=Daniel | title=Marker Wadden, the manmade Dutch archipelago where wild birds reign supreme | website=The Guardian| date=27 April 2019 | url=http://www.theguardian.com/world/2019/apr/27/marker-wadden-islands-netherlands-manmade-archipelago-wild-birds-eco-haven | access-date=8 July 2020 |archive-url=https://web.archive.org/web/20260110132406/https://www.theguardian.com/world/2019/apr/27/marker-wadden-islands-netherlands-manmade-archipelago-wild-birds-eco-haven |archive-date=2026-01-10 |url-status=live}}</ref>
==Superlatives== The largest archipelago in the world by number of islands is the Archipelago Sea, which is part of Finland. There are approximately 40,000 islands, most being uninhabited.<ref>{{cite web |url=http://www.sjofartsverket.se/upload/378/Sjokortsbilder/61.pdf |title=Nautical chart: International no. 1205, SE61, Baltic Sea, North, Sea of Åland |access-date=16 March 2023|archive-date=20 October 2017|archive-url=https://web.archive.org/web/20171020134932/http://www.sjofartsverket.se/upload/378/Sjokortsbilder/61.pdf|url-status=dead}}</ref> The largest archipelagic state in the world by area with more than 17,500 islands,<ref>{{Cite web |title=Indonesia at a glance |url=https://www.fao.org/indonesia/about-us/indonesia-at-a-glance/en |access-date=2026-03-04 |publisher=FAO}}</ref> and by population of around 284 million people,<ref>{{Cite web |title=Mid Year Population - Statistical Data |url=https://www.bps.go.id/en/statistics-table/2/MTk3NSMy/mid-year-population--thousand-people-.html |access-date=2026-03-04 |website=www.bps.go.id |publisher=Statistics Indonesia}}</ref> is Indonesia.<ref>{{Cite CIA World Factbook|country=Indonesia|access-date=7 December 2008 |year=2008}}</ref> <!-- It isn't clear if this 'factoid' should be in this article, or in the Indonesia article instead. -->
==See also== {{Portal|Geography|Islands}} * List of landforms * List of archipelagos by number of islands * List of archipelagos * Archipelagic state * List of islands * Aquapelago
==References== {{Reflist}}
==External links== {{Commons category|Archipelagoes}} {{Wiktionary}}
*{{Cite EB1911|wstitle=Archipelago}} *[https://web.archive.org/web/20090130062925/http://www.environmentalgraffiti.com/featured/island-archipelagos/3612 30 Most Incredible Island Archipelagos]
{{Coastal geography}} {{Authority control}}
Category:Archipelagoes<!--please leave the empty space as standard--> Category:Coastal and oceanic landforms Category:Oceanographical terminology