| Abbreviation | Definition |
|---|---|
| HARM | High-Speed Anti-radiation Missile |
| HARP | High Altitude Release Point |
| HARP | High Altitude Research Project |
| HARPSS | High Altitude Remote Platform Surveillance System |
| HAS | Hardened Aircraft Shelter |
| HASA | High Altitude SIGINT Architecture |
| HASC | House Armed Services Committee |
| HAST | Humanitarian Assistance Survey Team |
| HAT | Head Aimed Television |
| HATE | Heavily Armed Terrorist Embodiment |
| HATH | High Acceleration Terminal Homing |
| HATMD | High Altitude Tactical Missile Defense |
| HATR | Hazardous Air Traffic Report |
| HATS | Helicopter Advanced Tactical System |
| HATS | Helicopter Automatic Targeting System |
| HAV | High Altitude Vehicle |
| HAW | Heavy Airlift Wing |
| HAW | Heavy Armor Weapon |
| HAWC | Heavy Armored Weapon Chassis |
| HAWFCAR | Helicopter Adverse Weather Fire Control/Acquisition Radar |