| อักษรย่อ | คำเต็ม | รายละเอียด |
| AMME | ASEAN Ministerial Meeting on the Environment | |
| AOT | Airports of Thailand Public Company Limited | |
| A.C | account | |
| AEM | ASEAN Economic Ministers Meeting | |
| Ad. | Advertisements | |
| ATDP | The Association of Thai Textile Bleaching Dyeing Printing and Finishing Industries | |
| AIDS | Acquired Immunodeficiency Syndrome | |
| ADMI | Advanced Data Mining International | |
| AIPO | ASEAN Inter-Parliamentary Organization | |
| AOL | American Online, Inc. | |
