{{wiktionary|Mo|mo|-mo|m.o.|mo'}} '''Mo''' or '''MO''' may refer to:
{{tocright}} == Arts and entertainment == ===Fictional characters=== * Mo, a girl in the ''Horrible Histories'' TV series * Mo, also known as Mortimer, in the novel ''Inkheart'' by Cornelia Funke * Mo, in the webcomic ''Jesus and Mo'' * Mo, the main character in the ''Mo's Mischief'' children's book series * Mo, an ophthalmosaurus from ''The Land Before Time'' franchise * MO (Maintenance Operator), a robot in the Filmation series ''Young Sentinels'' * Mo, a main character in ''Zoey's Extraordinary Playlist'' * M-O (Microbe Obliterator), a robot in the film ''WALL-E'' * Mo the clown, a character played by Roy Rene, 20th-century Australian stage comedian * Mo Effanga, in the BBC medical drama series ''Holby City'' * Mo Harris, in the BBC soap opera ''EastEnders'' * Little Mo Mitchell, in the BBC soap opera ''EastEnders''
===Films=== * "Mo" (魔 demon), original title of ''The Boxer's Omen'', a 1983 Hong Kong film * ''Mo'' (2010 film), a television movie about British politician Mo Mowlam * ''Mo'' (2016 film), a Tamil horror film
===Music=== * ''M.O.'' (album), a 2013 album by American hip hop artist Nelly * M.O, an English pop trio * MØ, 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 entertainment=== * 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 organizations== * 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
==Language== * Mo (kana), Romanisation of the Japanese kana も and モ * Mo language (disambiguation) **Deg language (Ghana) **Wakde language (New Guinea) * Moldavian language (deprecated ISO 639-1 language code "mo")
==People== * Mo (given name) * Emperor Mo (disambiguation), the posthumous name of various Chinese emperors * Mo (Chinese surname) * Mo (Korean surname) * MØ, Danish singer songwriter Karen Marie Ørsted (born 1988) * Mr. Mo (rapper), rapper, member of the group Jim Crow * Mr. Mo (singer), member of the Danish band Kaliber * Mo Twister, Filipino radio DJ and TV host Mohan Gumatay (born 1977) * Mo Hayder, a pen name of British crime novelist Beatrice Clare Dunkel (1962–2021) * Mo (wrestler), ring name of Robert Horne (1964–2025), professional wrestler * Mariano Rivera, Panamaian-American retired baseball player (born 1969), nicknamed "Mo" ==Places== ===Norway=== * Mo i Rana, a town in Rana municipality, Nordland county * Mo, Agder, a village in Vegårshei municipality, Agder county * Mo, Innlandet, a village in Nord-Odal municipality, Innlandet county * Mo, Møre og Romsdal, a village in Surnadal municipality, Møre og Romsdal county * Mo, Telemark, a former municipality in the old Telemark county * Mo, Vestland, a village in Modalen municipality, Vestland county * Mo Church (disambiguation), a list of several churches by this name in Norway
===Elsewhere=== * County Mayo, Ireland (vehicle plate code MO) * Macau (ISO 3166-1 alpha-2 country code MO) * Missouri, US state (postal abbreviation MO) * Moscow Oblast, Russia * Province of Modena, Italy (vehicle plate code MO)
==Religion== * Mo (divination), a traditional Tibetan Buddhist technique of divination * Mo (religion), an animist religion of the Zhuang people of China * Modern Orthodox Judaism, a movement that attempts to synthesize Orthodox Jewish values with the secular world
==Science and technology== {{for|vehicles|#Vehicles}} ===Computing=== * .mo, country code top level domain of Macau * Magneto-optical drive (magneto-optical storage), a data storage medium * Microsoft Office, an office software suite * Mode of operation, in encryption block ciphers * Motivating operation, a term describing the effectiveness of consequences in operant conditioning
===Other uses in science and technology=== * 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 * Thom spectrum MO, in topology
==Vehicles== * 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 uses== * 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) * The Australian English diminutive word for moustache * Tokyo Monorail, line prefix MO
==See also== {{canned search|mo|m-o|mo's|mos|moes|m.o.'s}} * {{lookfrom|MO}} * {{lookfrom|Mo}} * {{intitle|M.O.}} * {{intitle|mo}} * M0 (disambiguation) * Meaux (disambiguation) * mho, in physics, the reciprocal of the "ohm" unit of resistance * Mø (disambiguation) * Mobile (disambiguation) * Moe (disambiguation) * Moe's (disambiguation) * Mohs (disambiguation) * Mow (disambiguation)
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