| อักษรย่อ | คำเต็ม | รายละเอียด |
| ARF | Acute Renal Failure | |
| A/C No. | account number | |
| AECC | ASEAN Economic Community Council | |
| ADSL | Asymmetric Digital Subscribers Line | |
| APEC | Asia-Pacific Economic Cooperation | |
| ABS | Antilock Braking System หรือ Acrylonitrile Butadiene Styrene | |
| ACBC | ASEAN-Canada Business Council | |
| ACMECS | Ayeyawady - Chao Phraya - Mekong Economic Cooperation Strategy | |
| ACCSM | ASEAN Conference on Civil Service Matters | |
| A /C | Air Conditioner / -ing | |
