| Island’s Name |
Island group(s) |
Country/Countries |
| A Nova |
Beira Baixa islands |
Portugal |
| Abbasak |
Persian Gulf |
Iran |
| Aberdeen |
Georgian Bay, Ontario |
Canada |
| Abner Cay |
Bahamas |
Bahamas |
| Abruka |
Baltic Sea |
Estonia |
| Absecon |
New Jersey |
United States |
| Abu Musa |
Persian Gulf |
Claimed by Iran and United Arab Emirates |
| Acheron |
Great Palm Island, Queensland |
Australia |
| Achill |
|
Ireland |
| Achillbeg |
|
Ireland |
| Acklins |
Bahamas |
Bahamas |
| Acton |
Lake Muskoka, Ontario |
Canada |
| Adam |
Lesser Antilles |
Grenada |
| Adams |
Antarctica |
|
| Adams |
Massachusetts |
United States |
| Adams |
Auckland Islands |
New Zealand |
| Adams |
Nunavut |
Canada |
| Adams Key |
Florida Keys, Florida |
United States |
| Adderly Cay |
Bahamas |
Bahamas |
| Adelaide |
Marguerite Bay off the west coast of the Antarctic Peninsula |
Antarctica |
| Adelaide |
St. Lawrence River, Ontario |
Canada |
| Adelsö |
Lake Mälaren |
Sweden |
| Adhelfopoulo |
Sporades |
Greece |
| Admiralty |
Alaska |
United States |
| Admiralty |
Nunavut |
Canada |
| Admiralty |
Saint Lawrence River, Ontario |
Canada |
| Æbelø |
The Kattegat |
Denmark |
| Aegina |
Saronic Islands |
Greece |
| Aegna |
Baltic Sea |
Estonia |
| Ærø |
Baltic Sea |
Denmark |
| Agar's |
Bermuda |
United Kingdom |
| Agathonisi |
Dodecanese |
Greece |
| Agatti |
Lakshadweep |
India |
| Agerø |
Limfjord |
Denmark |
| Agersø |
Great Belt |
Denmark |
| Agios Efstratios |
|
Greece |
| Agnes |
Queensland |
Australia |
| Agolada |
Ribatejo islands |
Portugal |
| Agrihan |
Northern Mariana Islands |
United States |
| Agunijima |
Okinawa Islands part of the Ryūkyū proper part of the Nansei Islands |
Japan |
| Ahe |
King George Islands, Tuamotus, French Polynesia |
France |
| Cayo Ahogado |
Greater Antilles, Puerto Rico |
United States |
| Ahtra |
Baltic Sea |
Estonia |
| Ailinginae |
Ralik Chain |
Marshall Islands |
| Ailinginae Atoll |
Ralik Chain |
Marshall Islands |
| Ailinglapalap |
Ralik Chain |
Marshall Islands |
| Ailinglapalap Atoll |
Ralik Chain |
Marshall Islands |
| Ailuk |
Ratak Chain |
Marshall Islands |
| Ailuk Atoll |
Ratak Chain |
Marshall Islands |
| Air Force |
Queen Elizabeth Islands, Nunavut |
Canada |
| Aipus |
Torres Strait Islands Queensland |
Australia |
| Aitutaki |
Cook Islands |
Cook Islands |
| Ajeltokrok |
Arno Atoll |
Marshall Islands |
| Ajirah |
Hawar Islands |
Bahrain |
| Akajima |
Kerama Islands part of the Okinawa Islands part of the Ryūkyū proper part of the Nansei Islands |
Japan |
| Akimiski |
James Bay, Nunavut |
Canada |
| Akpatok |
Queen Elizabeth Islands, Nunavut |
Canada |
| Aksi |
Gulf of Finland |
Estonia |
| Akusekijima |
Tokara Islands part of the Satsunan Islands part of the Nansei Islands |
Japan |
| Aikin |
Alabama |
United States |
| Al Hajiyat |
Hawar Islands |
Bahrain |
| Al Wakur |
Hawar Islands |
Bahrain |
| Alameda |
Islands of San Francisco Bay, California |
United States |
| Åland |
Archipelago Sea, Åland Islands |
Finland |
| Albany |
Torres Strait Islands Queensland |
Australia |
| Albatross |
Tasmania |
Australia |
| Isla de Alborán |
Plazas de Soberanía, Strait of Gibraltar |
Disputed between Spain and Morocco |
| Alcarraza |
Greater Antilles, Puerto Rico |
United States |
| Alcatraz |
Islands of San Francisco Bay, California |
United States |
| Alcorn |
Moon Lake, Mississippi |
United States |
| Alcsi-sziget |
Tisza |
Hungary |
| Alder Cay |
Bahamas |
Bahamas |
| Alderney |
Channel Islands |
Crown dependency |
| Alegranza |
Canary Islands |
Spain |
| Alejandro Selkirk |
Juan Fernández archipelago |
Chile |
| Alexander |
Queen Elizabeth Islands, Nunavut |
Canada |
| Cayo Alfenique |
Greater Antilles, Puerto Rico |
United States |
| Alger |
Fulton Chain Lakes, New York |
United States |
| Cayo Algodones |
Greater Antilles, Puerto Rico |
United States |
| Alicudi |
Aeolian Islands |
Italy |
| Alimia |
Dodecanese |
Greece |
| All Awash |
Lesser Antilles |
Saint Vincent and the Grenadines |
| Allan Cays |
Bahamas |
Bahamas |
| Allans Cay |
Bahamas |
Bahamas |
| Alligator |
Alabama |
United States |
| Allison |
Torres Strait Islands, Queensland |
Australia |
| Shortland/Alu |
|
Estonia |
| Almourol |
Ribatejo islands |
Portugal |
| Alnön |
|
Sweden |
| Alonissos |
Sporades |
Greece |
| Alpha |
Bermuda |
United Kingdom |
| Alumine Vaika |
|
Estonia |
| Isla Altamuria |
Sinaloa |
Mexico |
| Alty |
Delaware |
United States |
| Amager |
Øresund |
Denmark |
| Amami Ōshima |
Amami Islands part of the Ryūkyū proper part of the Nansei Islands |
Japan |
| Amanu |
Tuamotus, French Polynesia |
France |
| Ambae |
Pacific Ocean |
Vanuatu |
| Ambergris Cay |
Bahamas |
Bahamas |
| Ambrym |
New Hebrides |
Vanuatu |
| Ambu |
Arabian Sea |
India |
| Amedroz |
North Channel, Ontario |
Canada |
| Ameland |
West Frisian Islands |
Netherlands |
| Amelia |
Sea Islands, Florida |
United States |
| Amherst |
Lake Ontario, Ontario |
Canada |
| Amini |
Lakshadweep |
India |
| Ammerön |
|
Sweden |
| Amores |
Minho islands |
Portugal |
| Amorgos |
Cyclades |
Greece |
| Amoroso |
Beira Litoral Islands |
Portugal |
| Åmøy |
|
Norway |
| Amrita |
Massachusetts |
United States |
| Amrum |
North Frisian Islands |
Germany |
| Amsterdam |
Indian Ocean |
France |
| Amund Ringnes Island |
Sverdrup Islands group of the Queen Elizabeth Islands, Nunavut |
Canada |
| Amygdaloid |
Lake Superior, Michigan |
United States |
| Anacapa |
Channel Islands of California |
United States |
| Anafi |
Cyclades |
Greece |
| Anastasia |
Matanzas River, Florida |
United States |
| Anatahan |
Northern Mariana Islands |
United States |
| Anaho |
Pyramid Lake, Nevada |
United States |
| Anatom |
Pacific Ocean |
Vanuatu |
| Anchor |
Torres Strait Islands, Queensland |
Australia |
| Andalusia |
Mississippi River, Illinois |
United States |
| Anderson Cay |
Bahamas |
Bahamas |
| Anderson's Ledge |
Isles of Shoals, New Hampshire |
United States |
| Anderson |
Puget Sound, Washington |
United States |
| Andorja |
|
Norway |
| Andøy |
Vesterålen |
Norway |
| Andrott |
Lakshadweep |
India |
| Andros |
Cyclades |
Greece |
| Andros |
Bahamas |
Bahamas |
| Anegada |
Lesser Antilles, British Virgin Islands |
United Kingdom |
| Angel Cays |
Bahamas |
Bahamas |
| Isla Ángel de la Guarda |
Baja California |
Mexico |
| Angel |
Islands of San Francisco Bay, California |
United States |
| Angijak |
Nunavut |
Canada |
| Angistri |
|
Greece |
| Angle Cay |
Bahamas |
Bahamas |
| Angoche |
|
Mozambique |
| Anglesey |
North Wales |
Wales |
| Anguila |
Bahamas |
Bahamas |
Anguilla  |
Leeward Islands of the Lesser Antilles |
British Overseas Territory of the United Kingdom |
| Anguillita |
Leeward Islands of the Lesser Antilles, Anguilla |
British Overseas Territory of the United Kingdom |
| Anholt |
the Kattegat |
Denmark |
| Aniwa |
Pacific Ocean |
Vanuatu |
| Anjouan |
Comoros |
Comoros |
| Anna Cay |
Bahamas |
Bahamas |
| Annacis |
Fraser River, British Columbia |
Canada |
| Annobon |
Gulf of Guinea |
Equatorial Guinea |
| Anticosti |
Saint Lawrence River, Quebec |
Canada |
| Antigua |
Leeward Islands |
Antigua and Barbuda |
| Antikythera |
|
Greece |
| Antelope |
Arizona |
United States |
| Antelope |
Great Salt Lake, Utah |
United States |
| Antiparos |
Cyclades |
Greece |
| Antipsara |
|
Greece |
| Anuanuraro |
Duke of Gloucester Islands, Tuamotus, French Polynesia |
France |
| Anuanurunga |
Duke of Gloucester Islands, Tuamotus, French Polynesia |
France |
| Anuta |
Melanesia |
Solomon Islands |
| Anydros |
Cyclades |
Greece |
| Aoba |
Pacific Ocean |
Vanuatu |
| Aogashima |
Izu Islands |
Japan |
| Apataki |
Palliser Islands, Tuamotus, French Polynesia |
France |
| Aplin |
Queensland |
Australia |
| Appledore |
Isles of Shoals, Maine |
United States |
| Aquidneck |
Aquidneck Island, Rhode Island |
United States |
| Aragusuku |
Yaeyama Islands part of the Ryūkyū proper part of the Nansei Islands |
Japan |
| Aranysziget |
Tisza |
Hungary |
| Araura |
Cook Islands |
Cook Islands |
| Araway Cay |
Bahamas |
Bahamas |
| Arbuckle |
Arkansas |
United States |
| Archer |
Arkansas |
United States |
| Archers Cay |
Bahamas |
Bahamas |
| Arden |
Torres Strait Islands, Queensland |
Australia |
| Ardy More |
Lower Lough Erne |
Ireland |
| Cayo Arenas |
Greater Antilles, Puerto Rico |
United States |
| Argyle |
Lake Huron, Ontario |
Canada |
| Ariana |
Alentejo Islands |
Portugal |
| Aristazabal |
British Columbia |
Canada |
| Arizona |
Wyoming |
United States |
| Arkiko |
Red Sea |
Eritrea |
| Arkoi |
Dodecanese |
Greece |
| Armathia |
Dodecanese |
Greece |
| Armona Island |
Algarve islands |
Portugal |
| Armstrong |
Holston River, Tennessee |
United States |
| Arnold |
Queensland |
Australia |
| Arnøy |
|
Norway |
| Årø |
Little Belt |
Denmark |
| Arøya |
|
Norway |
| Arran |
Scotland |
Scotland |
| Arranmore |
County Donegal |
Ireland |
| Arsenal |
Mississippi River, Illinois |
United States |
Aruba  |
Lesser Antilles |
Kingdom of the Netherlands |
| Arutua |
Palliser Islands, Tuamotus, French Polynesia |
France |
| Ascension |
Atlantic Ocean |
Dependency of the British overseas territory Saint Helena |
| Ascrib |
|
Scotland |
| Ash |
Willamette River, Oregon |
United States |
| Asinara |
Sardinia |
Italy |
| Askø |
|
Denmark |
| Asperö |
Southern Gothenburg Archipelago |
Sweden |
| Assateague |
Maryland and Virginia |
United States |
| Astakida |
Dodecanese |
Greece |
| Astipálaia |
Dodecanese |
Greece |
| Asuncion |
Northern Mariana Islands |
United States |
| Atholl |
Bahamas |
Bahamas |
| Atiu |
Cook Islands |
Cook Islands |
| Atkinson |
Galveston Bay, Texas |
United States |
| Attu |
Aleutian Islands |
United States |
| Atwood Cay |
Bahamas |
Bahamas |
| Aubrey |
St. Lawrence River, Ontario |
Canada |
| Aubussi |
Torres Strait Islands, Queensland |
Australia |
| Auckland |
Auckland Islands |
New Zealand |
| Aughinish |
County Clare |
Ireland |
| August Cay |
Bahamas |
Bahamas |
| Auhah |
Persian Gulf |
Kuwait |
| Aukane |
Torres Strait Islands, Queensland |
Australia |
| Aulneau |
St. Lawrence River, Ontario |
Canada |
| Aur Atoll |
Ratak Chain |
Marshall Islands |
| Aureed |
Torres Strait Islands, Queensland |
Australia |
| Auskerry |
The North Isles, Orkney Islands |
Scotland |
| Austvågøy |
Lofoten |
Norway |
| Aux Herbes |
Mississippi Sound, Alabama |
United States |
| Avernakø |
|
Denmark |
| Averøy |
|
Norway |
| Avery |
Louisiana |
United States |
| Avsa |
Marmara Islands |
Turkey |
| Axel Heiberg |
Sverdrup Islands group of the Queen Elizabeth Islands, Nunavut |
Canada |
| Azenha Brava |
Alentejo islands |
Portugal |