MU, Mu or μ may refer to:
Language Mu (letter) (uppercase: Μ; lowercase: μ), the Greek alphabet's 12th letter Mu (kana), む or ム, a Japanese kana Mu (cuneiform), a sign in cuneiform writing Mu (negative), a word meaning "no" or "without" (Japanese: 無; Korean: 무) Middle Ukrainian, Ukrainian language 16th–18th century Groupe μ, Belgian linguistics group
Arts and entertainment
Film and television Aries Mu, a character from the anime Saint Seiya Mu La Flaga, a character from the anime Mobile Suit Gundam SEED Monsters University, a 2013 animated film by Disney and Pixar "μ's" (pronounced "Muse") is the name of the protagonist school idol group in the anime series Love Live! Miss Universe, one of the Big Four international women's beauty pageants, founded in 1952
Literature MU Press (short for "Miscellanea Unlimited Press"; ), a Seattle-based publisher of primarily "furry" comic books
Music
Albums Mu (album), a pair of free jazz albums by Don Cherry, released in 1969 and 1970 Mu, by Jah Wobble M.U. – The Best of Jethro Tull, a greatest hits album Mu Vol. I, an EP album by Richard Henshall, released in 2024, part of a trilogy
Music organizations Mu Performing Arts, an Asian-American theater company and taiko drumming ensemble MU, musical group formed by Merrell Fankhauser and Jeff Cotton Musicians' Union (United Kingdom) Planet Mu, an electronic music label
Other uses in music MU (musician), Mutsumi Kanamori, a Japanese-British musician MuseScore, a software GUI program for creating sheet music
Gaming Mu Online, a 2003 online role-playing game Mu, an ancient civilization from Mega Man Star Force 2 Mu-12, a character from the BlazBlue series Colony Mu, a location from Xenoblade Chronicles 3
Science, technology, and mathematics
Computing and electronics /mu/, a board pertaining to music discussion on 4chan μ, in evolutionary algorithms, the population size from which in each generation λ offspring will generate .mu, the ccTLD of Mauritius Mu Dynamics, a Sunnyvale-based company that makes software and hardware for testing network services, owned by Spirent Communications plc Micron Technology (NASDAQ symbol MU), a Boise-based semiconductor company that manufactures computer memory and data storage products Olympus mju (stylised as μ[mju:]), series of a compact cameras
Physics Coefficient of friction, used to approximate the force of friction Deformation (physics), as the "unit" of strain Electron mobility, relating the drift of electrons to the applied electric field across a material Linear density, a measure of mass per unit of length Magnetic dipole moment, a measure of the strength of a system's net magnetic source Mu-metal, a nickel-iron alloy with high magnetic permeability Muon, an elementary particle Muonium, exotic atoms made up of an antimuon and an electron Permeability (electromagnetism) coefficient, degree of magnetization of a material Proton-to-electron mass ratio, a dimensionless physical constant Reduced mass, the "effective" inertial mass appearing in the two-body problem Standard gravitational parameter of a celestial body Viscosity, the resistance of a fluid which is being deformed by stress
Chemistry Chemical potential, a form of potential energy that can be absorbed or released during a chemical reaction Bridging ligand, an atom that connects two or more metal centers in a complex (molecule)
Biology and medicine Bacteriophage Mu, a muvirus of the family Myoviridae of double-stranded DNA non-enveloped contractile tail bacterial viruses Map unit (m.u.) or centimorgan, a unit of recombinant frequency in genetics Monitor unit (MU), a measure of absorbed dose from a linear accelerator in radiation therapy = 0.001 Gray SARS-CoV-2 Mu variant, one of the variants of SARS-CoV-2, the virus that causes COVID-19 Mouse unit (MU), the amount of toxin required to kill a 20g mouse in 15 minutes via intraperitoneal injection
Measurement μ-/micro-, metric prefix denoting a factor of 10−6 (one millionth) Micrometre (deprecated as a single-character symbol "μ" for micron) Million units of energy, a term used in India for a gigawatt-hour; see Mu (land), a Chinese unit of area also spelled "mou", equivalent to about 0.066 hectares
Mathematics MU puzzle, from the Douglas Hofstadter book Gödel, Escher, Bach mu operator, a prefix operator μ that finds the minimum natural number that satisfies some predicate Möbius function μ(n), a multiplicative function in number theory and combinatorics Membership function (mathematics), μA, the m of a fuzzy set (U, m) Set function μ, in measure theory MU and μ, symbols relating to complex cobordism, an extraordinary cohomology theory Population mean (symbol μ)
Other uses in science and technology
The mu (μ) ring of Uranus
Transportation Mu (rocket family), a Japanese rocket family launched between 1966 and 2006 China Eastern Airlines, Shanghai, China, IATA code Multiple unit, self-propelled train carriages capable of coupling with other units of similar type Isuzu MU, a compact sport/utility vehicle
Places
Mythical places Mu (mythical lost continent), a mythical continent in the Pacific Ocean
Other places Mu River (Irrawaddy), a river in Burma (Myanmar) Mu River (Hokkaidō), a river in Japan Mù, a village in the Edolo municipality of Italy Mauritius (ISO 3166-1 alpha-2 country code MU)
Religion and philosophy Mu (negative), 無, a concept in Buddhism Muism (Korean shamanism), the native religion of Korea Mu (shaman), a Korean priest Church of England in Hunters Hill, New South Wales, Australia ("early church code" used by NSW Registry of Births Deaths & Marriages)
People
Mu (surname), a romanization of a Chinese family name: most commonly 穆, 牧, or 慕, but other possibilities include 木, 母 [Mǔ], 目, 沐, 睦 and 暮
Nobles and royals Mu family, a powerful Chinese family from the 14th to the 18th century Mu of Baekje (580–641), king of Baekje Mu of Balhae (died 737), king of Balhae from 718 to 737 Marquis Mu of Cai, ruler of the state of Cai from 675 to 646 BC King Mu of Chu (died 614 BC), king of the state of Chu from 625 to 614 BC Emperor Mu of Jin (343–361), emperor of the Eastern Jin Dynasty Marquis Mu of Jin (died 812 BC), ruler of the state of Jin from c. 798 to 776 BC King Mu of Zhou (died 922 BC), king of the state of Zhou from c. 976 to 922 BC
Other people Athing Mu-Nikolayev (born 2002 as Mu), American middle-distance runner Mu Dan (1918–1977), Chinese poet and translator
Universities
Australia Macquarie University, Sydney, New South Wales Monash University, Melbourne, Victoria Murdoch University, Perth, Western Australia
India Madras University, Chennai Mumbai University Manipur University, Imphal
United States
Missouri Maryville University, Town and Country University of Missouri, Columbia
Pennsylvania Messiah University, Mechanicsburg Millersville University of Pennsylvania, Millersville
Other states Marquette University, Milwaukee, Wisconsin Marymount University, Arlington, Virginia Marshall University, Huntington, West Virginia
Asia and Oceania Mahidol University, Salaya, Thailand Mandalay University, Mandalay, Myanmar Meiho University, Pingtung, Taiwan Misamis University, Ozamiz City, Misamis Occidental, Philippines
Europe Masaryk University, Brno, Czech Republic Mondragon University, Mondragon, Spain
Africa Mzumbe University, Mzumbe, Tanzania
Elsewhere Metropolitan University (disambiguation)
Sports Manchester United F.C., an English association football club (soccer team), initially named Newton Heath LYR Football Club (1878–1902)
Other uses Musician (United States Navy), an enlisted rating Mu, a type of icicle radish Mothers' Union, a global Anglican women's organisation
See also Moo (disambiguation) M (disambiguation)