| AAB | Australasian Associated Brewers |
|---|---|
| AACO | Amaryllis Avakian Clinica Oftalmologica |
| AACO | Australian Agricultural Company (skr.) |
| AAE | Australian Air Express |
| AANS | Afroasian News Service (skr.) |
| AAP | Australian Associated Press (skr.) |
| AAS | American Antiquarian Society |
| AAS | Arabian Advanced Systems |
| AAS | Association for Asian Studies |
| AAS | Australian Academy of Science |