// Workers AI · dad joke modeIs JJ a morning person? JJ-ust kidding.

JJ or jj may refer to:

Arts and entertainment

For people in arts and entertainment, see § People.

Film and television

• J. J. Evans, a character in the 1970s sitcom Good Times
• Jennifer Jareau or JJ, a character in Criminal Minds
• John Diggle Jr., a character in Arrow nicknamed "J.J."
• JJ DiMeo, a character in Speechless
• Jean-Jacques Leroy, a character in Yuri on Ice
• JJ Jones (Skins), a character in the British teen drama Skins
• "JJ" (Skins series 3), an episode of Skins series 3
• "JJ", an episode of Skins series 4
• JJ, the production code for the 1967 Doctor Who serial The Macra Terror

Music

• JJ (Swedish band)
• JJ, a band featuring English singer Jan Johnston
• J.J.!, an album by J. J. Johnson
• "J.J.", a song on the soundtrack of the video game L.A. Noire
• Abbreviation for Latin Jesu Juva, used by Johann Sebastian Bach at the beginning of his compositions

Other media

• JJ (magazine), a fashion magazine
• JJ (video game), a video game developed and published by Square Co., Ltd.

People

For all people with the nickname "JJ", see JJ (nickname).

• JJ (singer) (born 2001), Austrian singer and winner of the Eurovision Song Contest 2025
• JJ Lin (born 1981), Singaporean artist
• J. J. Eubanks (born 1968), American basketball player
• JJ Galbreath (born 2001), American football player
• JJ Kaplan (born 1997), American-Israeli basketball player
• JJ Lehto (born Jyrki Juhani Järvilehto, 1966), Finnish motor racing driver
• J. J. McCarthy (born 2003), American football player
• J. J. Moser (born 2000), Swiss professional hockey player
• JJ Pegues (born 2001), American football player
• JJ Redick (born 1984), American basketball coach and player
• J.J. Roberts (American football) (born 2001), American football player
• J. J. Valberg (born 1936), British-American philosopher
• J. J. Webster (1898–1965), American politician

Other uses

• JJ, abbreviation for plural judges or justices
• JJ, a brassiere measurement in the UK
• Jj coupling, a form of angular momentum coupling
• JJ, IATA code for LATAM Brasil
• J/Z (New York City Subway service), formerly JJ
• , rapid trains on the Jōban Line in Japan
• Jilly Juice, a fermented drink and a form of alternative medicine
• John Jay Hall, a dormitory at Columbia University

See also

• Jay Jay the Jet Plane, a children's television cartoon series
• Jay Jay, a 2003 Tamil film
• Jay-J (born 1969), American house music disc jockey
• Double J (disambiguation)
• J & J (disambiguation)
• JJS (disambiguation)
• GG (disambiguation)
• JJJ (disambiguation)