| Acronym | Definition |
|---|
| APAA | Aggressive Packet Adaptive Assembly |
| APAA | Asian Patent Attorneys Association |
| APAA | Automotive Parts & Accessories Association (now Automotive Aftermarket Industry Association) |
| APAA | Anterior Parietal Artery Aneurysm (arteries) |
| APAA | Active Phased-Array Antenna |
| APAA | Asian Pacific American Association |
| APAA | Associate Provost for Academic Administration (college position) |
| APAA | Association Protectrice des Animaux Abondonnes |
| APAA | Asistente de Primeros Auxilios Avanzado (Spanish: Advanced First Aid Assistant) |
| APAA | African Philosophy: An Anthology |