| Abbreviation | Definition |
|---|---|
| HMSB | Hummer, Slant Back |
| HMSK | Halloween Mask |
| HMSL | High Mounted Stop Lamp |
| HMSR | Hydraulic Module Speed Range |
| HMU | Hydromechanical Control Unit |
| HMVS | Humanoid Machine Vision System |
| HNBR | Hydrogenated Nitrile Butadiene Rubber |
| HNN | Hand Held Nebulizer |
| HO | Horizontal Opening |
| HOA | Hands Off Automatic |
| HOC | History Of Changes |
| HOD | Home and Office Delivery |
| HOQ | Heraeus Optical Quality glass |
| HOUR | Harmony One Universal Remote |
| HP | Hand Painted |
| HP | Hewlett Packaed |
| HP | Hot Products |
| HPA | High-Purity Aluminium |
| HPAS | Hanwell Photographic Art Supplies |
| HPC | Hazardous Products Center |