| AAAL | american academy of arts and letters |
|---|---|
| AAC | Academic Advisory Center |
| AAP | Alternate Access Provider |
| AAVA | American Academy of Veterinary Acupuncture (skr.) |
| ABEGHJAN | arménsky lingvista, literárny vedec a folklorista (Manuk, 1865-1944) |
| ABR | Area Border Router |
| AC | internetová doména pre akademické inštitúcie |
| ACC | Academic Computer Club |
| ADC | Advanced Development Centers |
| ADC | Air Defense Center |