| AAAL | american academy of arts and letters |
|---|---|
| AAB | Army Air Base |
| AAF | americká asociácia reklamy (ang.skr.) |
| AAF | Army Air Forces |
| AAM | Academy of Ancient Music |
| AAN | American Academy of Neurology (skr.) |
| AAN | American Academy of Nursing |
| AAP | Academy of American Poets |
| AAS | Academy of Applied Science |
| AAS | African Academy of Sciences |