AJ, or variants, may refer to:
Arts, entertainment and media
Fictional characters Applejack (My Little Pony: Friendship Is Magic), a character from the fourth incarnation of My Little Pony A. J. (The Fairly OddParents), a fictional character A.J. Simon, a character in the American crime drama television series Simon & Simon A.J. Soprano, a fictional character in The Sopranos Superspinner AJ, a fictional character in the Starflyers series of computer games AJ, in AJ and the Queen, an American comedy-drama TV series Apollo Justice, a fictional character from Apollo Justice: Ace Attorney AJ, a character from Blaze and the Monster Machines
Literature Architects' Journal, an architectural magazine The Astronomical Journal, a peer-reviewed monthly scientific journal
Media Aj (newspaper), a Hindi-language daily broadsheet newspaper in India
Businesses and organisations Al Jazeera Arabic, a Qatar-based international Arabic news channel AJ+, an online news and current events channel AJ Capital Partners, an American private real estate company AJ's Fine Foods, an American supermarket chain AJ Institute of Engineering and Technology, in Mangalore, India
Technology Jaguar AJ-V8, a line of V8 engines manufactured by Jaguar
Other uses Adherens junction, a protein complex AJ (given name), including a list of people with the name or nickname aJ, attojoule, a unit of energy equal to 10−18 joules Australian Scout Jamboree, a triennial festival North American AJ Savage, an aircraft Azerbaijan, WMO, FIPS, LOC MARC and obsolete NATO country code Animal Jam Classic, an online game formerly known as Animal Jam Animal Jam, an online mobile game formerly known as Animal Jam - Play Wild!
See also
A&J (disambiguation) Ajay (disambiguation) AAJ (disambiguation) AJJ (disambiguation) "Aj, aj, aj", a 1973 song by Schytts