| AAD | Assistant Athletic Director |
|---|---|
| AAR | asociácia atletických reprezentantov (skr.) |
| AAS | Approved As Stands |
| AAS | Australian Accounting Standard |
| ABA | Accredited Business Accountant |
| ABC | American Broadcasting Company, americká rozhlasová a televízna spoločnosť, televízna stanica v USA |
| ABE | Assistant Brigade Engineer |
| ABT | Air Ballast Tank |
| ACT | Additional Centre Tank |
| ADD | Assistant District Director |