| AAE | Australian Air Express |
|---|---|
| AAP | Australian Associated Press (skr.) |
| AAS | Australian Academy of Science |
| AAS | Australian Accounting Standard |
| AAS | Australian Acoustical Society, |
| AAS | Australian Alumni Singapore |
| AAS | Australian Anthropological Society |
| ABA | Australian Broadcasting Authority |
| ABC | Australian Broadcasting Commission |
| ABR | Australian Business Register |