| Acronym | Definition |
|---|
| MH | Marshall Islands (US postal abbreviation) |
| MH | Mental Health |
| MH | Montserrat |
| MH | Medizinische Hochschule (Hannover) |
| MH | Metal Halide (lamp) |
| MH | Mobile Home |
| MH | Malaysia Airlines |
| MH | Medical History |
| MH | Manufactured Housing |
| MH | Medal of Honor |
| MH | Message Handler |
| MH | Miami Herald |
| MH | Malignant Hyperthermia |
| MH | Monuments Historiques |
| MH | Manhole |
| MH | Machine Head (band) |
| MH | Mad Hatter (Alice in Wonderland character) |
| MH | Mental Hospital |
| MH | Medium Heavy |
| MH | Military History |
| MH | Megahertz |
| MH | Miami Heat (NBA team) |
| MH | Medicine Hat (Canada) |
| MH | Master Hunter (American Kennel Club hunting test title for retrievers) |
| MH | Mount Hyjal (World of Warcraft) |
| MH | Mobile Host |
| MH | Mail Handler |
| MH | Metal Hammer (music magazine) |
| MH | Man-Hours |
| MH | Maharashtra, India |
| MH | Mostly Harmless (Douglas Adams book) |
| MH | Modified Huffman (coding scheme) |
| MH | Military Hospital |
| MH | Mostly Harmless |
| MH | Material Handler |
| MH | Manitoba Hydro (electrical utility) |
| MH | Multi-Homed |
| MH | Master Herbalist |
| MH | Mass Hysteria (band) |
| MH | Mount Hood (Washington) |
| MH | Millihenry |
| MH | Million Hectares |
| MH | Medium Helicopter |
| MH | Macular Hole (ophthamology) |
| MH | Monster House (Discovery Channel) |
| MH | Malignant Hyperpyrexia |
| MH | Map Hack (Diablo 2 game) |
| MH | Magnetic Heading |
| MH | Matt Hardy (WWE wrestler) |
| MH | Mononoke Hime (Japanese Anime movie) |
| MH | Most Honorable |
| MH | Mega Health (gaming) |
| MH | Matrícula de Honor (Spanish education grade/mark) |
| MH | Multiple Handicaps |
| MH | Minehunter |
| MH | Master Hand (Super Smash Brothers game character) |
| MH | Mordheim (game) |
| MH | Morrison Hotel (Doors album) |
| MH | Maintenance Handbook |
| MH | Maximum Hop |
| MH | Mog House (gaming, Final Fantasy XI) |
| MH | Militair Hospitaal (Dutch) |
| MH | Multiply Halfword (IBM) |
| MH | Mystic Heroes (video game) |
| MH | Minimum-Hole (array) |
| MH | Movable Head |
| MH | Multirole Helicopter |
| MH | Magnet Hand (gaming; Mega Man) |
| MH | Munitions Handler |
| MH | Machray Hall (University of Manitoba) |
| MH | Minor Hurricane |
| MH | Mortis Hora (Latin: Hour of Death, epigraphy) |
| MH | Monumentum Hoc (Latin: This Monument, epigraphy) |
| MH | Great Britain Machine Definitives (Scott Catalogue prefix; philately) |
| MH | Inorganic, Micaeceous or Diatomaceous Elastic Silts (soil type) |
| MH | Midland Hockey (website) |
| MH | Mulier Honesta (Latin: Virtuous Lady, epigraphy) |
| mh | Mahoberberis (barberry) |
| MH | Merchant Haul |
| MH | Miscellaneous Hydrocarbon |
| MH | McGill Hospital |
| MH | Mechanical Hydrotest |