JJ

JJ can stand for:

TAM Airlines haha(TAM Linhas Aéreas), a Brazilian airline whose IATA code is JJ
Brassiere cup size, JJ in the UK
Johnson and Johnson, Johnson & Johnson a large US company owner of the domain JJ.com
Triple J, an Australian radio station formerly known as Double Jay with the callsign 2JJ
JJ, a band featuring Jan Johnston from the early 1990s (Columbia Records)
jj, a Swedish band
JJ, a fashion magazine
JJ, a video game developed and published by Square Co., Ltd.
"JJ", an episode of the teen drama Skins
Jay Jay, A Team Leader in Transcom
Jay-J, an American house DJ and producer
Jay Jay the Jet Plane, a CGI children's television cartoon fiction series
Jason Jr. (ROV), a remotely operated vehicle (ROV) that belongs to the Woods Hole Oceanographic Institution (WHOI)
Two or more judges, in court reporting (e.g. "Smith and Jones JJ"; singular J)

Arts & entertainment

Janet Jackson, an American singer and actress
JJ Lin, A Chinese-Singaporean singer-songwriter
Lil' JJ, American stand-up comedian
J. J. Abrams, American film and television producer, writer, actor, composer and director
Jean Jacques Burnel Anglo French musician (The Stranglers and solo)
J. J. Cale, an American songwriter and musician
J. J. Johnson, American jazz trombonist
JJ Osbun, American Entertainment Industry professional
Janis Joplin, American singer, songwriter and music arranger
Joshua Jackson, Canadian-American actor
Jeff Jarrett, American professional wrestler
Jenna Jameson, American porn actress
Jimmie Johnson, NASCAR Sprint Cup Driver
Joe Jonas, American singer, part of the Jonas Brothers
Joey Jordison, American drummer for metal band, Slipknot
Jovan Jovanov, Macedonian singer
Judge Judy, American television judge of an eponymous programme
Junaid Jamshed, Pakistani singer

J. Jonah Jameson, a Marvel Comics character
Jet Jaguar, a character in the Godzilla film series
J. J. Evans, James Evans Jr., a character in the television show Good Times
JJ Jones, a character from Skins
Jennifer "JJ" Jareau, a character in the television show Criminal Minds played by AJ Cook.
J.J., a "creature" from Resident Evil 4.