| AAA | amateur athletic association (skr.) |
|---|---|
| AACO | Arizona Association of Counties (skr.) |
| AAE | American Association of Engineers (skr.) |
| AEIF | European Association for Railway Interoperability (skr.), Európska asociácia pre interoperabilitu železníc (angl.skr.) |
| AGA | American Gas Association (skr.) |
| AIA | Aircraft Industries Association (skr.) |
| AIPS | Association Internationale de la Prese Sportive (skr.) |
| AIT | Association Internationale de Tourisme (skr.) |
| AJS | Association des Journalistes Sportifs (skr.) |
| AP | Association Press (skr.) |