Mk (disambiguation)

Mk may stand for:
* Mk (software), a make replacement in the Plan 9 from Bell Labs and Inferno operating systems
* Monk, in the Christian Church; when the term "Mk." follows the name of a Christian saint it denotes that the saint was a Monk
* Mk reference point, an interface of the IMS used to exchange messages between BGCFs in different networks

MK, mk or mK may also stand for:

;In entertainment;

* Magic Kingdom, a theme park at Walt Disney World Resort
* SSCI Mystic Kingdom, a zone in the game "SubSpace"
* "Mario Kart", a series of racing video games made by Nintendo
* "Mortal Kombat", a series of fighting video games
* Mark Kinchen, dance music producer aliased "MK"
* Monster Kill, a way of killing in the game Unreal Tournament
* Mary-Kate Olsen, an American actress
* Meta Knight, a character from the "Kirby" video game series
* Mushroom Kingdom, the setting of the "Super Mario Bros." video game series
* "Makai Kingdom", a tactical role-playing game
* MK (channel), a mostly Afrikaans music channel, that is part of the DStv bouquet of satellite channels based in South Africa
* Moon Knight, a Marvel Comics superhero
* Mr. Krabs, character in SpongeBob SquarePants
* Manky Kongs, characters in the Donkey Kong series

;In science and technology;
* The ISO country code for the Republic of Macedonia
** .mk, the Internet country code top-level domain for the Republic of Macedonia.
* Megakelvin (MK), an SI unit of temperature
* Millikelvin (mK), an SI unit of temperature
* MK spectral classification, a stellar classification system based on spectral lines

;Other;
* Air Mauritius, IATA airline designator MK
* Mandalskameratene, a Norwegian football club
* Gospel of Mark
* Mark (designation)
* Mebyon Kernow, Cornish political party - translates as "Sons and daughters of Cornwall" in the Cornish language
* Mein Kampf, a book written by Adolf Hitler
* Milton Keynes, a large town in southern England
* MK postcode area, a group of postal districts around Milton Keynes
* Missionary Kids, the children of missionary parents
* MK electric, a major manufacturer of electrical goods
* MK Sportscars, a UK sportscar kit manufacturer
* Morse-Kelley set theory
* Macedonian language, ISO 639 digram
* Mong Kok, a place in Hong Kong
* Umkhonto we Sizwe, the military wing of the African National Congress (ANC)
* Member of Knesset, the legislature of Israel
* Markup (business), a term for the increase in the price of goods to create a profit margin for a business
* Mind control; see also MK-ULTRA
* Morris Knolls High School, a high school in Denville, New Jersey
* Mysore Kirloskar, a company in India