| Abbreviation | Definition |
|---|---|
| AOAA | Alaska Outdoor Access Alliance |
| AOAA | Annotations of an Autopsy |
| AOAA | Anthracite Outdoor Adventure Area |
| AOAA | Application of Aminooxyacetic Acid |
| AOAA | Association of Air Ambulances |
| AOAB | Asian and Oceanian Affairs Bureau |
| AOAC | Adur Outdoor Activities Centre |
| AOAC | Any Other Ac Ceptable |
| AOAC | Any Other Acceptable Color |
| AOAC | Any Other Allowed Color |
| AOAC | Association of Analytical Communities |
| AOAC | Avon Outdoor Activities Club |
| AOAO | Acute Ophthalmic Artery Obstruction |
| AOAO | Anaerobic Oxide Anoxic Oxide |
| AOAO | Anaerobic Oxide Anoxic Oxide |
| AOAP | All Of Arts Production |
| AOAP | Annals of Applied Probability |
| AOAP | anterior Obturator Artery Perforator |
| AOAS | All of A Sudden |
| AOAS | Annals of Animal Science |