| Abbreviation | Definition |
|---|---|
| HNAQ | Host National Approval Query |
| HNAR | Host Nation Approval Requirements |
| HNGS | Hellenic Navy General Staff |
| HNM | Have No Mercy |
| HNS | Host Nation Support |
| HNS | Host-Nation Support |
| HNSA | Host-Nation Support Agreement |
| HNSC | House National Security Committee |
| HNSCC | Host-Nation Support Coordination Cell |
| HNVS | Helicopter Night Vision System |
| HO | Humanitarian Offensive |
| HO | Humanitarian Operation |
| HOAF | Honduran Armed Forces |
| HOAF | Honour Our Armed Forces |
| HOB | Heat Of Battle |
| HOB | Height of Burst |
| HOBO | Homing Bomb |
| HOBOS | HOming BOmb System |
| HOBS | High Off-Boresight |
| HOC | HUMINT (Human Intelligence) Operations Cell |