| Abbreviation | Definition |
|---|---|
| ARSN | Australian Registered Scheme Number |
| ARSP | Australian Radiofrequency Spectrum Plan |
| ARSR | Australian Religion Studies Review |
| ARTC | Australian Recognised Trade Certificate |
| ARTG | Australian Register of Therapeutic Goods |
| ARTN | Australian Regional Tourism Network |
| ARV | Australian Refugee Volunteers |
| ARY | Australian Rural Youth |
| ARYA | Australian Radio Yachting Association |
| AS | Australian Or Samo |
| AS | Australian Standards |
| ASA | Australian Seed Authority |
| ASAA | Asian Studies Association of Australia |
| ASAC | Australian Statistics Advisory Council |
| ASADA | Australian Sport Anti Doping Authority |
| ASADA | Australian Sports Anti Doping Authority |
| ASAG | Australian Shepherd Association Germany |
| ASAI | australian songwriters association inc |
| ASAL | Association for the Study of Australian Literature |
| ASAM | Australian School of Advanced Medicine |