# MU

MU, Mu or μ may refer to:

## 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!.

### 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

### Music

* Mu (album), a pair of free jazz albums by Don Cherry, released in 1969 and 1970
* Mu, an album by Jah Wobble.
* Mu Performing Arts, an Asian-American theater company and taiko drumming ensemble
* MU (musician), Mutsumi Kanamori, a Japanese-British musician
* MU, musical group formed by Merrell Fankhauser and Jeff Cotton
* M.U. – The Best of Jethro Tull, a greatest hits album
* Planet Mu, an electronic music label
* Mu Vol. I, is an EP album by Richard Henshall, released in 2024. It is part of a trilogy.

## Business

* Mu Dynamics, a company which makes hardware and software to test network services
* MU Press, an independent comic book publisher
* Isuzu MU Wizard, a compact sport/utility vehicle
* Micron Technology, Boise, Idaho, US, NASDAQ symbol
* China Eastern Airlines, Shanghai, China, IATA code

## Language and scripts

* Mu (letter) (Μ or μ), the 12th letter of the Greek alphabet
       Micro- (μ), metric prefix for one millionth
* 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

## Organisations

* Mothers' Union, a global Anglican women's organisation
* Musicians' Union (UK)
* Groupe μ, Belgian linguistics group

## Places

* Mu River, 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)
** .mu, the country code top-level domain for Mauritius

### Mythical places

* Mu (mythical lost continent), a mythical continent in the Pacific Ocean

## People

* Mu (surname) (穆, 牧, 慕, 木, 母, 目, 沐, 睦 and 暮), Chinese surnames
* 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
* Mu Dan (1918–1977), Chinese poet and translator
* Athing Mu (born 2002), American middle-distance runner

## 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)

## Science, technology, and mathematics
### Biology and medicine

* Mu phage, a bacteriophage of the family Myoviridae of double-stranded DNA non-enveloped contractile tail bacterial viruses
* Centimorgan, or "map unit", 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, the amount of toxin required to kill a 20g mouse in 15 minutes via Intraperitoneal injection

### 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)

### Mathematics

* MU puzzle, a puzzle in the book Gödel, Escher, Bach
* Minimalization operator (M operator), a function-building operator for General recursive function
* Möbius function, a multiplicative function in number theory and combinatorics
* Degree of membership in a fuzzy set
* The standard measure function name in measure theory
* Complex cobordism, an extraordinary cohomology theory
* μ, the symbol for population mean

### Measurement

* Micro-, SI (metric, "μ-") 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 kilowatt-hour#Other related energy units
* Mu (land), a Chinese unit of area also spelled "mou", equivalent to about 0.066 hectares.

### 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

### Other uses in science and technology

* μ, in evolutionary algorithms, the population size from which in each generation λ offspring will generate
* Mu (rocket family), a Japanese rocket family launched between 1966 and 2006
* Multiple unit, self-propelled train carriages capable of coupling with other units of similar type
* Olympus mju (stylised as μ[mju:]), series of a compact cameras
* The mu (μ) ring of Uranus

## Universities

* Metropolitan University (disambiguation)

### 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

* Marquette University, Milwaukee, Wisconsin
* Marymount University, Arlington, Virginia
* Maryville University, Town and Country, Missouri
* Marshall University, Huntington, West Virginia
* Messiah University, Mechanicsburg, Pennsylvania
* Millersville University of Pennsylvania, Millersville, Pennsylvania
* University of Missouri, Columbia, Missouri

### Other countries

* Mahidol University, Salaya, Thailand
* Mandalay University, Mandalay, Myanmar
* Masaryk University, Brno, Czech Republic
* Meiho University, Pingtung, Taiwan
* Misamis University, Ozamiz City, Misamis Occidental, Philippines
* Mondragon University, Mondragon, Spain
* Mzumbe University, Mzumbe, Tanzania

## Other uses

* Musician (United States Navy), an enlisted rating
* Mu, a type of icicle radish
* Manchester United F.C., a British football club
* Miss Universe, international women's beauty pageant
* MuseScore, a sheet music notation software
* /mu/, a board pertaining to music discussion on 4chan