MCO may refer to:

Abbreviations

Malaysian movement control order The Movement Control Order (), commonly referred to as the MCO or ''PKP'', was a series of national quarantine and ''Cordon sanitaire (medicine), cordon sanitaire'' measures implemented by the Government of Malaysia, federal government of Mala ...

, a lockdown measure by Malaysia during COVID-19 pandemic *

Managed Care Organization In the United States, managed care or managed healthcare is a group of activities intended to reduce the cost of providing health care and providing health insurance while improving the quality of that care. It has become the predominant system o ...

Manitoba Chamber Orchestra The Manitoba Chamber Orchestra (MCO) is a chamber orchestra based in Winnipeg, Manitoba, Canada. It offers an annual subscription series at Westminster United Church, which regularly features Canada's leading soloists, such as James Ehnes and Meas ...

* Manufacturer’s Certificate of Origin * Marine Corps Order *

Mars Climate Orbiter The ''Mars Climate Orbiter'' (formerly the Mars Surveyor '98 Orbiter) was a robotic space probe launched by NASA on December 11, 1998, to study the Martian climate, Martian atmosphere, and surface changes and to act as the communications rel ...

MC Oran (), known as , commonly referred to as MC Oran for short, is an Algerian professional Association football, football club based in Oran. Founded on 1 January 1917, the club was known as Mouloudia Chaâbia Ouahrania from 1971 to 1977, Mouloudia P ...

, an Algerian association football club *

MC Oujda Mouloudia Club of Oujda (), commonly abbreviated to MC Oudja, is a Moroccan football club based in Oujda. Mouloudia, which closely translates to "birth" in Arabic, was named after the coincidence of the day of its creation: on March 16, 1946 ( ...

, a Moroccan association football club * MegaCon Orlando, a large fan convention in Orlando * Millennial Choirs and Orchestras * MinecraftOnline, a ''

Minecraft ''Minecraft'' is a 2011 sandbox game developed and published by the Swedish video game developer Mojang Studios. Originally created by Markus Persson, Markus "Notch" Persson using the Java (programming language), Java programming language, the ...

'' multiplayer server * Miscellaneous Charges Order, a coupon used to process the payment of travel arrangements * ''

Modern Chess Openings ''Modern Chess Openings'' (usually called ) is a reference book on chess openings, first published in 1911 by the British players Richard Griffith (chess player), Richard Clewin Griffith (1872–1955) and John Herbert White (1880–1920). The fif ...

'', a reference book on chess openings * Moscow Chamber Orchestra * Motorsport Club of Ottawa * Motor City Online, a massively multiplayer online racing game * Member, College of Organists, an honorific

Codes

* MCO, the IATA airport code for

Orlando International Airport Orlando International Airport is the primary international airport located southeast of downtown Orlando, Florida. In 2024, it had 57,211,628 passengers, making it the busiest airport in the state and ninth busiest airport in the United St ...

* MCO, the ISO 3166 trigram for the country of

Monaco Monaco, officially the Principality of Monaco, is a Sovereign state, sovereign city-state and European microstates, microstate on the French Riviera a few kilometres west of the Regions of Italy, Italian region of Liguria, in Western Europe, ...

* MCO, the ISO 639-3 code for Coatlán Mixe * MCO, the NYSE code for

Moody's Corporation Moody's Corporation is an American business and financial services company. It is the holding company for Moody's Ratings (previously known as Moody's Investors Service), an American credit rating agency, and Moody's (previously known as Moody ...

* MCO, the UK National Rail station code for

Manchester Oxford Road railway station Manchester Oxford Road is a railway station in Manchester, England, at the junction of Whitworth Street West and Wilmslow Road, Oxford Street. It opened in 1849 and was rebuilt in 1960. It is the third busiest of the Manchester station group, fo ...

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