MH may refer to:
- Machine Head (band), a heavy metal band
- Maharashtra, a state of western India (ISO 3166-2:IN)
- Malaysia Airlines IATA airline designator
- Malignant hyperthermia
- Manhole
- Manhunt (disambiguation), several meanings
- Manitoba Hydro, the Crown corporation that supplies electricity to the province of Manitoba
- Manufactured housing, a factory built housing under the HUD Code
- Market Harborough, a town located in Leicestershire, United Kingdom
- Marques Houston, an American R&B singer and actor
- MH (album)
- Marshall Islands ISO 3166-1 alpha-2 country code and postal symbol
- Medal of Honor (disambiguation), several meanings
- megahenry (unit), an SI unit of inductance
- Menntaskólinn Hraðbraut, a gymnasium in Reykjavík
- Menntaskólinn við Hamrahlíð, a high school (gymnasium) located in Reykjavík, Iceland
- Mental Health
- MH Message Handling System, an email client
- Metal halide lamp
- Miami Heat, a NBA team
- Modified Huffman coding, a facsimile coding in computing
- Mohammad Habash, a Syrian Islamic scholar, writer and politician
- Monster Hunter, a video game for the PlayStation(R)2 console
- Montserrat FIPS PUB 10-4 territory code
- Morgan Hill, CA
- Most Haunted, a British paranormal TV show, hosted by Yvette Fielding
- Mount Hood Railroad
- MouseHunt, several meanings
- a symbol for a silt of high plasticity in the Unified Soil Classification System
- the code for County Meath, Ireland
mH may refer to:
- millihenry (unit), an SI unit of inductance
mh may refer to:
- .mh, the Internet country code top-level domain for Marshall Islands
mh. is used on maps as an abbreviation for the Turkish residential district known as a Mahalle.