| AAM | Academy of Ancient Music |
|---|---|
| AAS | Academy of Applied Science |
| AAS | Advances in the Astronautical Sciences |
| AAS | African Academy of Sciences |
| AAS | Associate in Applied Sciences |
| AAS | Association d'Animations Scientifiques |
| AAS | Australian Academy of Science |
| AAS | Austrian Academy of Sciences |
| ABS | Applied Behavioral Sciences |
| AEI | Average Efficiency Index |