| อักษรย่อ | คำเต็ม | รายละเอียด |
| APHA | American Public Health Association | |
| AMEM | ASEAN Ministers on Energy Meeting | |
| A-X | ASEAN Minus X | |
| AATCC | American Association Of Textile Chemists And Colorists | |
| ACMECS | Ayeyawady - Chao Phraya - Mekong Economic Cooperation Strategy | |
| ATP | Association of Tennis Professionals | |
| A/C No. | account number | |
| AGE | Acute Gastroenteritis | |
| ADB | Asian Development Bank | |
| AMBDC | ASEAN-Mekong Basin Development Cooperation | |
