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 C… (More on Hm)