| Abbreviation | Definition |
|---|---|
| HH | Hands High |
| HH | Homing Pattern |
| HHA | Health Hazard Assessment |
| HHA | Heavy Horse Archer |
| HHB | Headquarters and Headquarters Battalion |
| HHB | HQ and HQ Battery |
| HHC | Headquarters and Headquarters Company |
| HHD | Headquarters and Headquarters Detachment |
| HHD | HQ and HQ Detachment |
| HHE | Headquarters and Headquarters Element |
| HHF | Heaven Or Hell Factor |
| HHG | Headquarters and Headquarters Group |
| HHG | HouseHold Goods |
| HHI | Human-to-Human Interface |
| H-HMMWV | Heavy High Mobility Multi-purpose Wheeled Vehicle |
| HHOP | Headquarters and Headquarters OPerations Company |
| HHOP | HQ and HQ and Operations Company |
| H-HOUR | Hour that the Operation Commences |
| H-Hour | Seaborne Assault Landing Hour |
| H-Hour | Specific Time An Operation or Exercise Begins |