DJ (disambiguation)

DJ or dj may mean:
Disc jockey
Dow Jones
 Either deca-joule (daJ = 101  J) or deci-joule (dJ = 10-1  J), both SI units of energy 
Deejay, a term used in Dancehall music for an emcee or lyricist.
Toasting, talking or chanting over a rhythm
Dansk Jernbane ApS, a Danish railway company
DeadJournal website
Dinner jacket
Dirty Jobs
District Judge
"DJ" is a nickname of New York Yankees shortstop Derek Jeter
"DJ" is also a nickname for Cleveland Cavaliers point guard-shooting guard Damon Jones
"DJ" is also a nickname for all-star basketball guard Dennis Johnson
"DJ" is also a nickname for NASCAR champion Dale Jarrett
"DJ's" is a nickname for the David Jones Limited department store chain in Australia
DJ (song), a single by David Bowie
"DJ Lance Rock" from Yo Gabba Gabba!, an American children's TV show on Nick Jr.
Freddy Bastone was one of the youngest, most "DJ's" during the club scene of the 1980s.
Djibouti, country in eastern Africa
Djembe drum, common to many drum circles.
Dee Jay, a Jamaican video game character in Street Fighter, a kids' TV series 
Dell Digital Jukebox
Dirt Jumping a bicycle riding style
RBK DJ, a sneaker created by Reebok
A strip club euphemism for bouncer
Airlines Virgin Blue and Pacific Blue, whose IATA code is D.J.
D.J. a play by Georgi Gospodinov about the legend of Don Juan
D.J. Carey, Kilkenny hurling player
D.J. Conner, a character on the TV sitcom Roseanne
Drake and Josh, an American Nickelodeon kids' animated comedy
D.J. Tanner, a character on the TV show Full House
 D. J. Augustin, a Texas Longhorns basketball player
Daniel Jones (phonetician) a pronunciation dictionary of British English
Double Jeopardy, a 1999 film
Daljeet, a character, played by actor Aamir Khan, in the Hindi movie "Rang De Basanti" (RDB) released in January 2006
Deterministic jitter is a signal processing phenomenon in telecommunications
Dimension Jump (UK Convention) an annual UK Red Dwarf Convention
DJ Qualls, actor
Dust jacket, a cover on a book