word | | Country name |
| Arab | Yemen | ... form: Yemen local long form: Al Jumhuriyah al Yamaniyah local short form: Al Yaman former: Yemen Arab Republic [Yemen (Sanaa) or North Yemen] and People's Democratic Republic of Yemen [Yemen (Aden ... |
| Arabia | Saudi Arabia | conventional long form: Kingdom of Saudi Arabia conventional short form: Saudi Arabia local long form: Al Mamlakah al Arabiyah as Suudiyah local short form: Al Arabiyah as Suudiyah |
| Arabiyah | Egypt | conventional long form: Arab Republic of Egypt conventional short form: Egypt local long form: Jumhuriyat Misr al-Arabiyah local short form: Misr former: United Arab Republic (with Syria) |
| Arabiyah | Libya | ... long form: Great Socialist People's Libyan Arab Jamahiriya conventional short form: Libya local long form: Al Jumahiriyah al Arabiyah al Libiyah ash Shabiyah al Ishtirakiyah al Uzma local short form: none |
| Arabiyah | Saudi Arabia | conventional long form: Kingdom of Saudi Arabia conventional short form: Saudi Arabia local long form: Al Mamlakah al Arabiyah as Suudiyah local short form: Al Arabiyah as Suudiyah |
| Arabiyah | Syria | conventional long form: Syrian Arab Republic conventional short form: Syria local long form: Al Jumhuriyah al Arabiyah as Suriyah local short form: Suriyah former: United Arab Republic (with Egypt) |
| Arabiyah | United Arab Emirates | conventional long form: United Arab Emirates conventional short form: none local long form: Al Imarat al Arabiyah al Muttahidah local short form: none former: Trucial Oman, Trucial States abbreviation: UAE |
| Area | Akrotiri | conventional long form: Akrotiri Sovereign Base Area conventional short form: Akrotiri |
| Area | Dhekelia | conventional long form: Dhekelia Sovereign Base Area conventional short form: Dhekelia |
| Argentina | Argentina | conventional long form: Argentine Republic conventional short form: Argentina local long form: Republica Argentina local short form: Argentina |
| Argentine | Argentina | conventional long form: Argentine Republic conventional short form: Argentina local long form: Republica Argentina local short form: Argentina |
| Armenia | Armenia | conventional long form: Republic of Armenia conventional short form: Armenia local long form: Hayastani Hanrapetut'yun local short form: Hayastan former: Armenian Soviet Socialist Republic, Armenian Republic |
| Armenian | Armenia | conventional long form: Republic of Armenia conventional short form: Armenia local long form: Hayastani Hanrapetut'yun local short form: Hayastan former: Armenian Soviet Socialist Republic, Armenian Republic |
| art | Georgia | conventional long form: none conventional short form: Georgia local long form: none local short form: Sak'art'velo former: Georgian Soviet Socialist Republic |
| Aruba | Aruba | conventional long form: none conventional short form: Aruba |
| AS | American Samoa | conventional long form: Territory of American Samoa conventional short form: American Samoa abbreviation: AS |
| ash | Algeria | conventional long form: People's Democratic Republic of Algeria conventional short form: Algeria local long form: Al Jumhuriyah al Jaza'iriyah ad Dimuqratiyah ash Sha'biyah local short form: Al Jaza'ir |
| ash | Libya | ... long form: Great Socialist People's Libyan Arab Jamahiriya conventional short form: Libya local long form: Al Jumahiriyah al Arabiyah al Libiyah ash Shabiyah al Ishtirakiyah al Uzma local short form: none |
| Ashmore | Ashmore and Cartier Islands | conventional long form: Territory of Ashmore and Cartier Islands conventional short form: Ashmore and Cartier Islands |
| atasi | Samoa | conventional long form: Independent State of Samoa conventional short form: Samoa local long form: Malo Sa'oloto Tuto'atasi o Samoa local short form: Samoa former: Western Samoa |
| Atoll | United States Pacific Island Wildlife Refuges | conventional long form: none conventional short form: Baker Island; Howland Island; Jarvis Island; Johnston Atoll; Kingman Reef; Midway Islands; Palmyra Atoll |
| Australes | French Southern and Antarctic Lands | ... Southern and Antarctic Lands conventional short form: French Southern and Antarctic Lands local long form: Territoire des Terres Australes et Antarctiques Francaises local short form: Terres Australes et Antarctiques Francaises abbreviation: TAAF |
| Australia | Australia | conventional long form: Commonwealth of Australia conventional short form: Australia |