Mo or MO may refer to:

Arts and entertainmentEdit

Fictional charactersEdit



  • M.O. (album), a 2013 album by American hip hop artist Nelly
  • M.O, an English pop trio
  • , a Danish singer
  • The MO, a Dutch pop band
  • Mo Awards, annual awards for Australian live entertainment
  • Yamaha MO, a music synthesizer

Other arts and entertainmentEdit

  • Mo (Oz), a fictional country in the book The Magical Monarch of Mo by L. Frank Baum
  • Mo (TV series), a 2022 comedy-drama

Businesses and organizationsEdit

  • Altria Group, formerly Philip Morris (New York Stock Exchange symbol MO)
  • Calm Air (IATA airline designator MO), an airline based in Thompson, Manitoba, Canada
  • Milicja Obywatelska, a state police institution in Poland from 1944 to 1990







Science and technologyEdit


Other uses in science and technologyEdit

  • Mo (grist mill) (磨), ancient Chinese stone implements used to grind grain into flour
  • Magnus and Oberhettinger aka "Formulas and Theorems for the Functions of Mathematical Physics", a mathematics book on special functions
  • Manual override, a mechanism wherein control is taken from an automated system and given to the user
  • Metalorganics, also known as organometallics, in chemistry and materials science
  • Molecular orbital, a mathematical function describing the wave-like behavior of an electron in a molecule
  • Molybdenum, symbol Mo, a chemical element
  • Momentary open (MO), a group of electrical switches


  • MO-class small guard ship, a class of small ships produced before and during World War II for the Soviet Navy
  • Morris Oxford MO, an automobile produced by Morris Motors of the United Kingdom from 1948 to 1954

Other usesEdit

  • Mo (Chinese zoology), a name that semantically changed from "giant panda", to "a mythical chimera", to "tapir"
  • Modus operandi (abbreviation m.o.), Latin meaning "mode of operation"; distinctive behavior patterns of an entity
  • Month (abbreviation mo.), a unit of time of approximately 30 days
  • Operation Mo, or the Port Moresby Operation, a Japanese plan to take the Australian Territory of New Guinea during World War II
  • Medical officer (disambiguation)

See alsoEdit