MMO may refer to:

Entertainment

Massively multiplayer online game A massively multiplayer online game (MMOG or more commonly MMO) is an online video game with a large number of players, often hundreds or thousands, on the same server. MMOs usually feature a huge, persistent open world, although there are ...

, a video game that can be played by many people simultaneously *

Music Minus One Music Minus One (MMO) is a music production and recording company in Westchester, New York. Their recordings are meant to be accompanied by the listener on whichever instrument (or voice type) is excluded from the recording, as an aid to practice, ...

, a record company in Westchester, New York

Science and technology

Methane monooxygenase Methane monooxygenase (MMO) is an enzyme capable of oxidizing the C-H bond in methane as well as other alkanes. Methane monooxygenase belongs to the class of oxidoreductase enzymes (). There are two forms of MMO: the well-studied soluble form (s ...

, an enzyme *

Maximum operating Mach number In aviation, V-speeds are standard terms used to define airspeeds important or useful to the operation of all aircraft. These speeds are derived from data obtained by aircraft designers and manufacturers during flight testing for aircraft t ...

Mercury Magnetospheric Orbiter BepiColombo is a joint mission of the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) to the planet Mercury. The mission comprises two satellites launched together: the Mercury Planetary Orbiter (MPO) and ''Mio'' ...

, a component of the Mercury mapper BepiColombo *

Mini-Mag Orion Mini-Mag Orion (MMO), or Miniature Magnetic Orion, is a proposed type of spacecraft propulsion based on the Project Orion nuclear propulsion system. The Mini-Mag Orion system achieves propulsion by compressing fissile material in a magnetic field ...

, a proposed type of spacecraft propulsion *

Mixed metal oxide Mixed metal oxide (MMO) electrodes, also called Dimensionally Stable Anodes (DSA), are devices with high conductivity and corrosion resistance for use as anodes in electrolysis. They are made by coating a substrate, such as pure titanium plate or ...

, a class of materials often used in electrodes

Other

Means, motive, and opportunity Criminal investigation is an applied science that involves the study of facts that are then used to inform criminal trials. A complete criminal investigation can include searching, interviews, interrogations, evidence collection and preservation ...

, the "indicators of suspicion" *

Minimum municipal obligation In the United States, a minimum municipal obligation (MMO) is the state-mandated smallest amount a municipality must contribute to any pension plan established for its employees. Rules The amount is calculated using actuarial science to ensure t ...

, minimum contribution to a pension plan *

Maio Airport The Maio Airport ( Portuguese ''Aeródromo do Maio'') is an airport in Cape Verde located in the island of Maio, about 3 km north of the island capital Porto Inglês Porto Inglês ( Portuguese for "English port", also: ''Cidade do Maio'' ...

, in Cape Verde, IATA code *

Melton Mowbray railway station Melton Mowbray railway station serves the market town of Melton Mowbray in Leicestershire, England. It is owned by Network Rail and operated by East Midlands Railway, though CrossCountry operates most of the services as part of its to route. ...

, England (National Rail station code MMO) *

Marine Management Organisation The Marine Management Organisation (MMO) is an executive non-departmental public body in the United Kingdom established under the Marine and Coastal Access Act 2009, with responsibility for English waters. The MMO exists to make a significant cont ...

, UK government body * Marine mammal observer, a professional in environmental consulting

Entertainment

Science and technology

Other

See also