HM or hm may refer to:
Arts and entertainment HM (magazine), a Christian hard rock magazine
Businesses, groups, organizations H&M, a Swedish clothing company Hindustan Motors, an automobile manufacturer of India Air Seychelles (IATA airline code HM) HM Transport, a bus company in the Philippines
People Henry Molaison, aka Patient H.M., a man with anterograde amnesia His or Her Majesty, a form of address for various monarchs Home Minister, an interior minister Hospital corpsman, in the United States Navy Sisters of the Holy Humility of Mary's postnominal initials
Other uses Heard Island and McDonald Islands (ISO 3166 digram and FIPS PUB 10-4 territory code HM) .hm, the Internet country code top-level domain ostensibly for the above Hectometre (hm), an SI unit of length Hindley–Milner type system, in mathematics "Half marathon" athletics abbreviation in road racing
See also