| Abbreviation | Definition |
|---|---|
| ADCSLOG-SA | Assistant Deputy Chief of Staff for LOGistics for Security Assistance |
| ADCSOPS | Assistant Deputy Chief of Staff for OPerations |
| ADCSOPS | Assistant Deputy Chief of Staff for Operations and Plans (former name) |
| ADCSOPS(C-4) | Assistant Deputy Chief of Staff for Operations and Plans (Command, Control, Communications, and Computers) |
| ADCST | Assistant Deputy Chief of Staff for Training |
| ADCSTE | Assistant Deputy Chief of Staff for Test and Evaluation |
| ADCU | Analog to Digital Converter Unit |
| ADD | Anti-Drone Defense |
| ADD | Armor Defeating Device |
| ADDC | Air Defense Direction Center |
| ADDCOMPE | Army/DARPA Distributed Communications and Processing Experiment |
| ADDCS | Air Defense Command and Control System |
| ADDIE | Analyze, Design, Develop, Implement, and Evaluate |
| ADDISS | Advanced Deployable Digital Imagery Support System (or Segment) |
| ADDL | Additional |
| ADDM | Asynchronous Digital Data Modem |
| ADDO | Assistant Deputy Director for Operations |
| ADDO(MS) | Assistant Deputy Director for Operations (Military Support) |
| ADDS | Army Data Distribution System |
| ADDS | Aviation Digital Data Service |