| Abbreviation | Definition |
|---|---|
| MHP | Medical Home Port |
| MHQ | Military HeadQuarters |
| MHQ | Military History Quarterly |
| MHR | Man Hours Required |
| MHS | Message Handling System |
| MHS | Military Health System |
| MHS | Military Healthcare System |
| MHSI | Military History Society of Ireland |
| MHSM | Military Historical Society Massachusetts |
| MHSM | Military Historical Society of Massachusetts |
| MHSWA | Military History Society of Western Australia |
| MHT | Message Handling Table |
| MHT | Military Historical Tours |
| MHU | Modular Heat Unit |
| MHV | My HealtheVet |
| MHW | Mean High Water |
| MHZ | MegaHertz |
| MI | Market Investigation |
| MI | Master Item |
| MI | Middle Initial |