| AAB | Application Architecture Blueprint |
|---|---|
| AAD | American Academy of Denturity |
| AAI | American Alpine Institute (skr.) |
| AAI | American Alpine Institution |
| AAP | austrálska tlačová agentúra |
| AAP | brazílska tlačová agentúra |
| AAP | tlačová agentúra Austrálie |
| AAS | African-American Studies |
| AAS | Alternate Architecture Study |
| AAS | Association for Asian Studies |