| Aargau | ||
| Abkhazia | 1992→ | |
| Abu Dhabi | 1968-1978 | |
| Aceh | [15th C.-1874] | |
| Acre | ||
| Aden | ||
| Ajman | ||
| Alagoas | ||
| Alabama | ||
| Åland Islands | ||
| Alaska | ||
| Albania | 1913-1915, 1925-1939, 1946→ | |
| Alberta | ||
| Algeria | 1962→ | |
| Algiers | 16th C.-1830 | |
| Amapá | ||
| Amazonas | ||
| American Samoa | ||
| Andalusia | ||
| Angola | 1976→ | |
| Anguilla | 1973→ | |
| Anhui | ||
| Anjouan | [16th C.-1912] [1997-2002] | |
| Annam | 11th C.-c.1887 | |
| Antigua & Barbuda | 1983→ | |
| Antioquia | ||
| Arab Federation | ||
| Argentina | 1811→ | |
| Arizona | ||
| Arkansas | ||
| Armenia | 1918-1920, 1992→ | |
| Aruba | 1989→ | |
| Asahan | [17th C.-1868] | |
| Asir | ||
| Asturias | ||
| Australia | ||
| Australia, South | 1862-1911 | |
| Australia, Western | 1880-1895 | |
| Austria | 1713-1738, 1765-1809, 1813-1867 | |
| Austria | 1919-1938, 1956-2008 | |
| Austria-Hungary | 1867-1918 | |
| Ava | 1753-1885 | |
| Awlaqi | ||
| Azerbaijan | 1918-1920 | |
| Azerbaijan | 1992→ |