| AAB | Airport Advisory Board |
|---|---|
| AAC | Academic Advisory Center |
| AAK | čln na Rýne, riečny nákladný čln |
| AAS | Airport Advisory Service |
| AAS | American Auditory Society |
| AAS | Association for Academic Surgery |
| AAS | Atomic Absorption Spectrophotometry |
| AAS | nórsky rýchlokorčuliar (OH 1960) |
| ABI | Advanced Binary Interface (skr.) |
| ABI | Advanced Boundary Information |