Mo or MO may refer to:
Mo, Hedmark, a village in Nord-Odal municipality, Hedmark county, Norway
Mo, Hordaland, a village in Modalen municipality, Hordaland county, Norway
Mo, Møre og Romsdal, a village in Surnadal municipality, Møre og Romsdal county, Norway
Mo, Telemark, a former municipality in Telemark county, Norway
Mo i Rana, a town in Rana municipality, Nordland county, Norway
Mo Church (disambiguation), one of several churches in Norway
Mo (kana), Romanisation of the Japanese kana も and モ
Moldavian language (deprecated ISO 639-1 language code "mo")
Mo (religion), an animist religion of the Zhuang people of China
Mo (divination), a traditional Tibetan Buddhist technique of divination
MOJ Modern Orthodox Judaism, a movement within Orthodox Judaism that attempts to synthesize Jewish values and the observance of Jewish law, with the secular, modern world
Mo (given name)
Mo (surname) (莫), Chinese surname
Emperor Mo (disambiguation), one of several Chinese emperors
Mo (wrestler), one half of the tag team Men on a Mission
Books and comics
Mo (Oz), a fictional country in the book The Magical Monarch of Mo by L. Frank Baum
Mo, also known as Mortimer, a fictional character in the novel Inkheart by Cornelia Funke
Mo, a fictional character in the webcomic Jesus and Mo
Film and TV
"Mo" (魔 demon) The Boxer's Omen, a 1983 Hong Kong film, original title
Mo (2010 film), a 2010 television movie about British politician Mo Mowlam
Mo (2016 film), a 2016 Tamil horror film
Mo Harris, a fictional character in the BBC soap opera EastEnders
Little Mo Mitchell, a fictional character in the BBC soap opera EastEnders
Mo the clown, a character played by Roy Rene, 20th-century Australian stage comedian
M-O (Microbe Obliterator), a fictional robot character in film WALL-E
MO (Maintenance Operator), a fictional robot character in the Filmation series Young Sentinels
Mo, the main character in the fictional Mo's Mischief series
Mo, a girl in the Horrible Histories TV series
Mo, an ophthalmosaurus from The Land Before Time film series
MØ (born 1988), Danish singer songwriter (real name Karen Marie Ørsted)
Mo Awards, annual awards for Australian live entertainment
Yamaha MO, a music synthesizer
Mr. Mo (rapper), rapper, member of the group Jim Crow
Mr. Mo (singer), member of the Danish band Kaliber
M.O, an English pop trio
The MO, a Dutch pop band
M.O. (album), a 2013 album by American hip hop artist Nelly
Modus operandi, Latin meaning Mode of Operation: distinctive behavior patterns of a person
Businesses and organizations
MO, New York Stock Exchange symbol for Altria Group, formerly Philip Morris
Calm Air (IATA airline designator), an airline based in Thompson, Manitoba, Canada
MO, Milicja Obywatelska, a state police institution in Poland from 1944–1990
Macau (ISO 3166-1 alpha-2 country code MO)
MO County Mayo, Ireland (vehicle plate code MO)
MO Province of Modena, Italy (vehicle plate code MO)
MO Missouri, US (postal abbreviation)
MO Moscow Oblast, Russia
.mo, country code top level domain of Macau
Magneto-optical drive (magneto-optical storage), a data storage medium
Microsoft Office, an office software suite
Mobile (disambiguation), referring to mobile technology or the mobile industry
Mode of operation, in encryption block ciphers
Motivating operation, a term describing the effectiveness of consequences in operant conditioning
Science and technology
MO, Manual override, a mechanism wherein control is taken from an automated system and given to the user
Metalorganics, also known as organometallics
Molecular orbital, a mathematical function describing the wave-like behavior of an electron in a molecule
Molybdenum, a chemical element with the symbol Mo
Momentary open (MO), switches, a group of switches
Operation Mo, or the Port Moresby Operation, a Japanese plan to take the Australian Territory of New Guinea during World War II
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
mo. Month (abbreviation mo.), a unit of time, used with calendars, which is approximately as long as a natural period related to the motion of the Moon; month and Moon are cognates
