- Abbottabad (Pakistan)
- Aberdeen
- Abu Dhabi (United Arab Emirates)
- Accomac
- Accomack County (Virginia)
- Acton
- Addison
- Adelaide (Australia)
- Afghanistan
- Africa
- Agoura Hills
- Ahmedabad (India)
- Ahoskie
- Alachua County
- Alameda (Alameda, California)
- Alameda County (California)
- Albania
- Albany County
- Albany Park
- Albemarle County
- Albertson
- Albrightsville
- Albuquerque
- Alburtis
- Aleppo (Syria)
- Alexandria (Alexandria, Virginia)
- Algeria
- Algiers (Algeria)
- Algonquin
- Alhambra
- Aliso Viejo (Orange, California)
- Allegany County
- Alleghany County (Virginia)
- Allegheny County (Pennsylvania)
- Allen County (Indiana)
- Allentown
- Almaty (Kazakhstan)
- Alpha
- Alpine County (California)
- Alsip
- Altadena
- Altamonte Springs
- Alturas (Modoc, California)
- Amador County (California)
- Amagansett
- Amelia County
- Amherst County
- Amityville
- Amman (Jordan)
- Amsterdam (Netherlands)
- Anaheim
- Anchorage
- Andersonville
- Andorra
- Andover
- Andreas
- Angola
- Ankara (Turkey)
- Annadale
- Annapolis
- Anne Arundel County
- Ansonia
- Antarctica
- Antigua and Barbuda
- Antilles
- Antioch (Contra Costa, California)
- Antioch (Lake, Illinois)
- Apopka
- Apple Valley (San Bernardino, California)
- Appomattox County
- Aquebogue
- Arabian Peninsula
- Arcadia
- Archer Heights
- Argentina
- Arleta
- Arlington (Staten Island, New York)
- Arlington County
- Armenia
- Armour Square
- Arnold (Anne Arundel, Maryland)
- Artesia
- Aruba
- Arverne
- Ashburn
- Ashfield
- Ashford
- Asia
- Astana (Kazakhstan)
- Astoria
- Asuncion (Paraguay)
- Athens
- Athens (Greece)
- Atlanta
- Atlantic Beach
- Atlantic City (Atlantic, New Jersey)
- Atlantic County
- Atlantic Ocean
- Atlantis
- Atwater Village
- Auburn Gresham
- Auburndale
- Audubon Park
- Augusta County
- Aurora
- Austin (Chicago, Illinois)
- Australia
- Austria
- Avalon Park (Chicago, Illinois)
- Avalon Park (Orlando, Florida)
- Aventura
- Avon (Dare, North Carolina)
- Avon (Hartford, Connecticut)
- Avondale
- Azalea Park
- Azerbaijan
- Azusa