| AAB | Advertising Association of Baltimore |
|---|---|
| AAC | Air Agency Certificate |
| AACO | American Association of Certified Orthoptists |
| AAF | American Advertising Federation |
| AAFJES | holandský spisovateľ a prekladateľ (Lambertus Jacobus Johannes, 1914-1993) |
| AAM | Advertising Account Manager |
| ABBADO | taliansky dirigent, šéfdirigent orchestra v Mníchove a orchestra Bavorského rozhlasu, otec Claudio (Roberto, *1954) |
| ABONENT | predplatiteľ, napr. novín či koncertov |
| AC | advertising council (skr.) |
| AC | attribute certificate (skr.) |