| AAB | Adaptive Angle Bias |
|---|---|
| AAR | Active Array Radar |
| AAS | Adaptive Antenna System |
| AAS | Allround Automotive Solutions |
| ABAS | Adaptive Behavior Assessment System |
| ABB | Adaptive Body Bias |
| ABC | Active Body Control |
| ABC | Alternative Birth Center |
| ABS | Adaptive Business Systems |
| ABS | Alternative Bank Schweiz, švajčiarska banka so sídlom v Oltene |