| AAE | Australian Air Express |
|---|---|
| AAP | Alternate Access Provider |
| AAP | Australian Associated Press (skr.) |
| AAT | Average Access Time |
| ABA | Accredited Business Accountant |
| ABAS | Adaptive Behavior Assessment System |
| ABC | American Bowling Congress |
| ABL | Address Block Locator |
| ABM | Access Bandwidth Manager |
| ABP | Address Book Provider |