| AAD | Applied Acoustic Design (skr.) |
|---|---|
| ABE | Advanced Boresight Equipment |
| ABS | Automatic block signal (skr.) |
| ADAM | francúzsky sochár (Lambert-Sigisbert, 1700-1759) |
| ADD | Advanced Digital Design |
| ADD | Architectural Design Document |
| ADE | Analog Design Environment |
| ADT | Art Design Technology |
| AED | Attraction and Entertainment Design |
| AMPEX | záznam televízneho signálu |