| ABS | značka počítačovej firmy |
|---|---|
| ACI | Automobileclub Italien (skr.) |
| ADC | Analog-Digital Combiner |
| ADD | Advanced Digital Design |
| ADD | Army Digital Division |
| ADN | Advanced Digital Network |
| ADP | Antenna Digital Positioner |
| ADS | Authoritative Data Sources |
| AEH | Aravind Eye Hospital |
| AKA | americká myrtovitá rastlina pôvodom z Argentíny a Brazílie |