| A | artéria (skr.) |
|---|---|
| AA | artérie (skr.) |
| AAAL | american academy of arts and letters |
| AAB | Advertising Association of Baltimore |
| AAB | Airport Advisory Board |
| AAB | Associazione Artisti Bresciani |
| AAB | Atelier Artistique du Beton |
| AAB | Ateliers-Artistes-Belleville |
| AAC | Air Agency Certificate |
| AACO | American Association of Certified Orthoptists |