| AAB | Army Air Base |
|---|---|
| AAD | American Academy of Denturity |
| AAD | American Academy of Dermatology |
| AAE | Army Aviation Element |
| 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 |