World Factbook
- Abidjan (capital)
- Abkhazia (region)
- Abu Dhabi (capital)
- Abuja (capital)
- Abu Musa (island)
- Abyssinia (former name for Ethiopia)
- Acapulco (city)
- Accra (capital)
- Adamstown (capital)
- Addis Ababa (capital)
- Adelie Land (claimed by France; also Terre Adelie)
- Aden, Gulf of
- Aden (city)
- Admiralty Island
- Admiralty Islands
- Adriatic Sea
- Adygey (region)
- Aegean Islands
- Aegean Sea
- Afars and Issas, French Territory of the (or FTAI; former name for Djibouti)
- Afghanestan (local name for Afghanistan)
- Agalega Islands
- Agana (city; former name for Hagatna)
- Ajaccio (city)
- Ajaria (region)
- Akmola (city; former name for Astana)
- Aksai Chin (region)
- Aland Islands
- Al Arabiyah as Suudiyah (local name for Saudi Arabia)
- Alaska, Gulf of
- Alaska (state)
- Al Bahrayn (local name for Bahrain)
- Alboran Sea
- Aldabra Islands (Groupe d'Aldabra)
- Alderney (island)
- Aleutian Islands
- Alexander Archipelago (island group)
- Alexander Island
- Alexandretta (region; former name for Iskenderun)
- Alexandria (city)
- Algiers (capital)
- Alhucemas, Penon de (island group)
- Al Imarat al Arabiyah al Muttahidah (local name for the United Arab Emirates)
- Al Iraq (local name for Iraq)
- Al Jaza'ir (local name for Algeria)
- Al Kuwayt (local name for Kuwait)
- Alma-Ata (city; former name for Almaty)
- Al Maghrib (local name for Morocco)
- Almaty (former capital)
- Alofi (capital)
- Alphonse Island
- Alsace (region)
- Al Urdun (local name for Jordan)
- Al Yaman (local name for Yemen)
- Amami Strait
- Amindivi Islands (former name for Laccadive Islands)
- Amirante Isles (island group; also Les Amirantes)
- Amman (capital)
- Amsterdam (capital)
- Amsterdam Island (Ile Amsterdam)
- Amundsen Sea
- Amurskiy Liman (strait)
- Anadyrskiy Zaliv (gulf)
- Anatolia (region)
- Andaman Islands
- Andaman Sea
- Andorra la Vella (capital)
- Andros (island)
- Andros Island
- Anegada Passage
- Angkor Wat (ruins)
- Anglo-Egyptian Sudan (former name for Sudan)
- Anjouan (island)
- Ankara (capital)
- Annobon (island)
- Antananarivo (capital)
- Antigua (island)
- Antipodes Islands
- Antwerp (city)
- Aomen (local Chinese short-form name for Macau)
- Aozou Strip (region)
- Apia (capital)
- Aqaba, Gulf of
- Arabian Sea
- Arafura Sea
- Aru Sea
- Ascension Island
- Ashgabat, Ashkhabad (capital)
- Asmara, Asmera (capital)
- As-Sudan (local name for Sudan)
- Assumption Island
- Astana (capital; formerly Akmola)
- Asuncion (capital)
- Asuncion Island
- Atacama (desert)
- Atacama (region)
- Athens (capital)
- Attu Island
- Auckland (city)
- Auckland Islands
- Australes, Iles (island group; also Iles Tubuai)
- Avarua (capital)
- Axel Heiberg Island
- Azad Kashmir (region)
- Azarbaycan, Azerbaidzhan (local name for Azerbaijan)
- Azores (islands)
- Azov, Sea of