| Abbreviation | Definition |
|---|---|
| ATP | Acceptance Test Plan |
| ATP | Acquisition Tracking and Pointing |
| ATP | Advance Targeting Pod |
| ATP | Allied Tactical Publication |
| ATP | Ammunition Transfer Point |
| ATPS | Analysis of Training Performance System |
| ATR | Advanced Tactical Radar |
| ATR | Air Transport Rack |
| ATR | Alaska Trauma Registry |
| ATR | All Terrain Rifle |
| ATR | Annual Training Requirement |
| ATR | Anti Tank Rifle |
| ATR | Army Training Regiment |
| ATR | Attack The Radical |
| ATR | Attack The Rim |
| ATR | ATtrition Reserve |
| ATR | Automatic Target Recognition |
| ATR | Auxiliary Tug and Rescue |
| ATR | Average True Range |
| ATRRS | Army Training Requirements and Resource System |