| AAB | Agence Africaine de Biotechnologie |
|---|---|
| AAB | American Association for Bronchology |
| AAB | Annals of Applied Biology |
| AAB | Association of Applied Biologists |
| AAD | American Academy of Dermatology |
| AAN | American Academy of Neurology (skr.) |
| AAS | Alabama Archaeological Society |
| AAS | American Arachnological Society |
| AAS | American Association of Suicidology |
| AAS | Asociación Argentina de Sedimentología |