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{{wiktionary|MJ|mJ|mj|Ɱ}}
'''MJ''' may refer to:
{{TOC right}}

==Fictional characters==
* [[M.J. Delfino]], in ''Desperate Housewives''
* [[Mary Jane Watson]], in Marvel comics
** [[Mary Jane Watson (2002 film series character)]], the film adaptation of the character
* [[MJ (Marvel Cinematic Universe)]], a character in the Marvel Cinematic Universe

* Agent MJ, in the film ''[[Miss Cast Away and the Island Girls]]'', played by Michael Jackson

* Agent M, in the film [[Men In Black II]], played by Michael Jackson

==People==
* {{slink|Mary Jane (disambiguation)|People}}
* [[MJ (South Korean singer)]] (Kim Myung-jun, born 1994), a South Korean singer, actor, and model 
* [[MJ Acosta]] (fl. from 2016), a Dominican-American sports reporter 
* [[MJ Cole]] (born 1973), English DJ and record producer
* [[MJ Delaney]], British television director
* [[MJ Erb]] (born 1994), American long-distance runner
* [[MJ Hegar]] (born 1976), American U.S. Air Force veteran and former political candidate
* [[MJ Hibbett]] (born 1970), English guitarist singer-songwriter
* [[Mary Jean Lastimosa|Mary Jean "MJ" Lastimosa]] (born 1987), Filipina actress and beauty pageant titleholder
* [[MJ Lee]] (born 1987), American political correspondent 
* [[MJ Lenderman]] (born 1999), American musician
* [[MJ Long]] (1939–2018), American architect, lecturer and author
* [[MJ Mentz]] (born 1982), South African rugby player 
* [[MJ Pelser]] (born 1998), South African rugby player
* [[Mj Rodriguez]] (born 1991), American actress and singer
* [[Mary Joy Tabal|Mary Joy "MJ" Tabal]] (born 1989), Filipina marathon runner
* [[MJ Williams]] (born 1995), Welsh footballer 
* [[Mahan Mj]] (born 1968), Indian mathematician and monk
* [[Michael Jackson]] (1958–2009), American singer, songwriter, and dancer
** ''[[MJ the Musical]]'', a 2021 Broadway musical centered on Michael Jackson
*** [[MJ (album)|''MJ'' (album)]], the cast album to the musical
* [[Michael Jordan]] (born 1963), American businessman and former professional basketball player
* [[Mike Johnson]] (born 1972), Speaker of the United States House of Representatives since 2023

==Science==
* [[Megajoule]] (MJ), or [[millijoule]] (mJ), units of energy <!--ignore one blue link rule-->
* [[Jupiter mass]] (M<sub>J</sub>), a unit of mass

==Transportation==
* [[Manufacturers' Junction Railway]], near Cicero, Illinois, U.S., reporting mark MJ
* [[Líneas Aéreas Privadas Argentinas]], a former Argentinian airline, IATA airline code MJ
* [[Jeep Comanche]], designated MJ, a pickup truck
* [[MJ (New York City Subway service)]], a defunct subway service in New York City, US
* [[Marwar Junction railway station]] (station code: MJ), Rajasthan, India

==Other uses==

* ''The MJ'', a short name for ''[[The Municipal Journal]]'', a United Kingdom publication about local democracy and civic administration
* ''[[Maillot jaune]]'' or yellow jersey, worn by the leader of the Tour de France cycling stage race
* [[Master of Jurisprudence]], a master's degree
* ''[[West's Military Justice Reporter]]'' (cited as M.J.), official reporter of the U.S. Court of Appeals for the Armed Forces
* Short for Mary Jane, slang for [[marijuana]]

==See also==
* {{lookfrom|MJ}}
* [[Emjay]] (born 1974), a Canadian Eurodance musician
* [[Ɱ]], the letter M with hook

{{disambiguation}}