| Abbreviation | Definition |
|---|---|
| ATH | Above The Horizon |
| ATH | Air Transportable Hospital |
| ATH | Assign THresholds |
| ATHB | Ammunition Transfer & Holding Point |
| ATHELO | Attack Helicopter Organization |
| ATHOC | Automatic Target Hand-Off Correlator |
| ATHP | Autonomous Terminal Homing Program |
| ATHS | Air Transportable Hospital System |
| ATHS | Airborne Target Handover System |
| ATHS | Automatic Target Handoff System |
| ATI | Artillery Target Intelligence |
| ATIA | Army Training Information Architecture |
| ATIC | Army Tactical Intelligence Concept |
| ATID | Automated Tactical Information Display |
| ATIGS | Advanced Tactical Inertial Guidance System |
| ATIMP | Army Training Info Management System |
| ATIMS | Airborne Tactical Information Management System |
| ATIPS | Army Threat & Intelligence Production System |
| ATIRCM | Advanced Threat Infra-Red Countermeasures System |
| ATIRS | Automated Test Incident Recording System |