| Abbreviation | Definition |
|---|---|
| MGSS | Machine Gun Safety Switch |
| MGU | idcourse Guidance Unit |
| MGU | Midcourse Guidance Unit |
| MGV | Mobile Gateway Van |
| MH | Maneuver Control System Hand held Terminal Unit |
| MH | MCS (Maneuver Control System) Hand-held terminal unit |
| MH | MCS (Maneuver Control System) Hand-held terminal unit |
| MH | Message Handler |
| MH | Military Hero |
| MH | Mine Hunter |
| MHAT | mental health advisory team |
| MHC | Management Headquarters Ceiling |
| MHC | Materiel Handling Crane |
| MHCC | Military Hospitals Commission Canada |
| MHD | Magneto Hydro Dynamics |
| MHDL | MIMIC Hardware Description Language |
| MHE | Materials Handling Equipment |
| MHI | Marine Hydraulics International |
| MHI | Military History Institute |
| MHOW | Millitary Headquarters Of War |