MJ

MJ may refer to:

• Manufacturers' Junction Railway's reporting mark
• Líneas Aéreas Privadas Argentinas' IATA code
• Jeep Comanche or MJ, a pickup truck
• Millijoule (mJ) or megajoule (MJ), units of energy
• MJ, a defunct New York City subway service

People

• Michael Jackson, American recording artist, entertainer, and businessman
• Michael Jordan, former American professional basketball player

Fictional

• M.J. Delfino, Mike and Susan Delfino's son on Desperate Housewives
• Mary Jane Watson, a character in Marvel's Spider-Man comic book series
• Agent MJ, a character in the movie Miss Cast Away and the Island Girls

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