| Abbreviation | Definition |
|---|---|
| ASD | Ammunition Storage Depot |
| ASD | Armament Systems Division |
| ASD | Army Schools Department |
| ASD | Army shipping document |
| ASD | Assigned Software Developer |
| ASD | Assigned Systems Developer |
| ASD | Assistant Secretary of Defense |
| ASD | Automatic Shut Down |
| ASD | AWIS Software Development |
| ASD(A&L) | Assistant Secretary of Defense (Acquisition and Logistics) |
| ASD(C) | Assistant Secretary of Defense (Comptroller) |
| ASD(C3I) | Assistant Secretary of Defense (Command, Control, Communications, and Intelligence) |
| ASD(FM&P) | Assistant Secretary of Defense (Force Management and Personnel) |
| ASD(FMP) | Assistant Secretary of Defense (Force Management Policy) |
| ASD(HA) | Assistant Secretary of Defense (Health Affairs) |
| ASD(HD&ASA) | Assistant Secretary of Defense (Homeland Defense and Americas' Security Affairs) |
| ASD(HD) | Assistant Secretary of Defense (Homeland Defense) |
| ASD(ISA) | Assistant Secretary of Defense (International Security Affairs) |
| ASD(ISP) | Assistant Secretary of Defense (International Security Policy) |
| ASD(LA) | Assistant Secretary of Defense (Legislative Affairs) |