Look up HM, hm, or .hm in Wiktionary, the free dictionary.

HM may refer to:

• HM (magazine), a Christian hard rock magazine
• HM (patient), pseudonym of Henry Molaison, a man with anterograde amnesia
• HM, the IATA airline code for Air Seychelles
• HM, the ISO 3166 digram and FIPS PUB 10-4 territory code of Heard Island and McDonald Islands
• Fender HM Strat, a superstrat electric guitar
• H.M. Murdock, a character from the television series The A-Team
• H&M (originally Hennes & Mauritz), a Swedish clothing company

HM may stand for:

• Hannah Montana, a popular Disney Channel TV show
• Hotel Mario, a puzzle game developed by Fantasy Factory and published by Philips Interactive Media
• Happy Mondays, a British rock band from Manchester
• Harmonic Mean, a type of mathematical mean
• Harvest Moon (series), a series of farming simulation video games
• Haunted Mansion, a dark ride attraction in several Disney theme parks
• Hazardous materials, also known as dangerous goods
• Heavy metals, higher atomic weight metallic elements
• His/Her Majesty, a form of address for a monarch and his/her consort
• Hidden Machine, in the video game series Pokémon
• Hindley-Milner, a type system
• Hindustan Motors, an automobile manufacturer of Indian
• Hospital Corpsman, in the United States Navy
• Hospitality management studies, an academic area

hm may refer to:

• hamburgmuseum, the name of a history museum in Hamburg, Germany
• hectometre, an SI unit of length

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