| AAM | Advertising Account Manager |
|---|---|
| AAP | Alternate Access Provider |
| AAS | Australian Accounting Standard |
| AAT | American Accent Training |
| AAT | Association of Accounting Technicians |
| AAT | Average Access Time |
| ABA | Accredited Business Accountant |
| ABBAS | egyptský kresťanský mních, askét a svätec, Anton Veľký (Antonius, cca. 251-356) |
| ABBASI | perzský maliar (Riza-i, cca 1565-1635) |
| ABIGAIL | postava z opery Nabucco |