As a nickname, JJ, J.J., or J. J. may refer to:
In arts and entertainment
Justo Justo or JJ (1941–2012), Filipino columnist and news presenter J.J. Caucus, a character in the Doonesbury comic strip J. J. Abrams (born 1966), American media director and producer JJ Burnel (born 1952), Franco-English musician, singer-songwriter and producer JJ Cale (1938–2013), American singer-songwriter, recording artist and influential guitar stylist JJ Lin (born 1981), Singaporean mandopop singer-songwriter, composer and actor J. J. McCullough, Canadian YouTuber JJ Olatunji (born 1993), English YouTube personality, professional boxer and singer also known as KSI Jay-J (born 1969), American house music disc jockey Jökull Júlíusson or JJ, Icelandic singer and songwriter with the band Kaleo Jennifer Herrema or JJ, American singer and songwriter with the band Royal Trux Johannes Pietsch or JJ (born 2001), Austrian singer-songwriter Junaid Jamshed or JJ (1964–2016), Pakistani recording artist and religious figure Justin Quinn or JJ, British singer known for his vocals on songs by UK garage duo DJ Luck & MC Neat Josie Totah or J. J. (born 2001), American actress J.J. Villard, American animator and filmmaker, known for creating King Star King and JJ Villard's Fairy Tales J.J., band featuring English singer Jan Johnston
In sports J. J. Davis (born 1978), American baseball player J. J. Koski (born 1996), American football player JJ Lehto (born 1966), Finnish motorsport racing driver J. J. Mann (born 1991), American basketball player J. J. McCarthy (born 2003), American football player JJ McKiernan (born 2002), English footballer J. J. Moses (born 1979), American football player JJ Pegues (born 2001), American football player JJ Peterka (born 2002), German ice hockey player JJ Quinerly (born 2002), American basketball player J. J. Raterink (born 1981), American football player JJ Redick (born 1984), American basketball player J. J. Russell (born 1998), American football player J. J. Syvrud (born 1977), American football player J. J. Taylor (born 1998), American football player J. J. Watt (born 1989), American football defensive end for the Houston Texans of the National Football League (NFL) JJ Wetherholt (born 2002), American baseball player J. J. Williams (1948–2020), retired Welsh rugby union player J. J. Yeley (born 1976), American NASCAR driver Jermaine Jenas (born 1983) retired English professional footballer Jimmie Johnson (born 1975), American Indycar driver
In other fields
Robert Jay (judge) (born 1959), noted in court reports as "Jay J." Jonathan "JJ" Johnson, American businessman and politician from Utah J. J. Thomson (1856–1940), English physicist J. J. Valberg (1936), British-American philosopher J.J. Webster (1898–1965), American politician Jan Jambon (1960), Belgian politician Janez Janša, former Slovenian prime minister
See also