| Abbreviation | Definition |
|---|---|
| ADF | Allied Democratic Forces |
| ADH | Additional Duty Hour |
| ADI | American Doctrine International |
| ADI | Area of Dominant Influence |
| ADM | Admiral - Navy |
| ADORS | Army Dental Officer Retention Survey |
| ADP | Assistive Devices Program |
| ADPC | Assistant District Project Co-ordinatior |
| ADSN | Accounting and disbursing station number |
| ADSO | Accelerator Department Safety Office |
| ADT | Administrative Decisions Tribunal |
| ADU | Anti-Discrimination Unit |
| ADUFA | Animal Drug User Fee Act |
| AE | American Embassy |
| AE | Architecture and Engineering |
| AE | Armed Forces Africa |
| AEC | Atomic Energy Coommission |
| AECA | Arms Export Control Act |
| AECT | Association for Educational Communications and Technology |
| AED | Automatic External Defibrillator |