MHM may refer to:
Organisations Maritime Heritage Minnesota, historical society Mayer Hoffman McCann P.C., US accountancy firm Mill Hill Missionaries, a society of apostolic life of Catholic missionaries Our Homeland Movement (Mi Hazánk Mozgalom), a Hungarian political party
Other uses Master of Health Administration, also known as Master of Health Management Melbourne Holocaust Museum, a museum dedicated to the Holocaust in Melbourne, Australia Menstrual hygiene management, access to facilities and products to manage menstruation Merstham railway station, Surrey, England, by National Rail station code "Mhm", a song by Vince Staples from the album Vince Staples
See also Habitation and Logistics Outpost, a space station module also known as the Minimum Habitation Module (MHM)