John Dunn
John, Jack, Johnny, Jon, or Jonathan Dunn may refer to:
Entertainment
- John Dunn (pipemaker), inventor of keyed Northumbrian smallpipes
- John Dunn (actor) born O'Donoghue, Australian comic actor
- John Millard Dunn, organist and choirmaster
- John Dunn (violinist), English violinist
- Johnny Dunn, American jazz trumpeter
- Jon Dunn (musician), American musician
- John Dunn (software developer), American musician and art software developer
- John Dunn (animator), cartoon writer for DePatie-Freleng and Looney Tunes
- John W. Dunn (painter), American painter
- John Dunn (radio presenter), BBC Radio 2 DJ
Politics
- John Henry Dunn, businessman and political figure in Canada West
- John Dunn Jr. (assemblyman), Wisconsin politician
- John T. Dunn, U.S. Representative from New Jersey
- John Dunn Jr., South Australia politician
- John Freeman Dunn, English banker and stockbroker, barrister and Liberal Party politician
- John Dunn (1820–1860), British Conservative politician
Religion
- John Woodham Dunn, Anglican vicar of Warkworth, Northumberland
- John Joseph Dunn, American prelate of the Catholic Church
Sports
- Jack Dunn (baseball), minor league baseball owner and manager
- John Dunn (cricketer), English cricketer
- John Dunn (footballer, born 1888), English football inside right
- John Dunn (footballer, born 1944), English footballer for Aston Villa and Charlton Athletic
- Jack Dunn (footballer, born 1994), English football player
- Johnny Dunn (footballer), Australian rules footballer for Collingwood
- Jon Dunn, American football player
- Jack Dunn (soccer), American soccer player
- Jack Dunn (figure skater), British figure skater
- John Dunn (Australian rules footballer)
- John Dunn (American football), American football coach and former player
- John Dunn (American football, born 1888), American football player and team owner
- Jack Dunn (rugby union), New Zealand rugby union player
Other
- John Dunn (pioneer lawyer), coffee planter and lawyer, recipient of a 1765 land grant in Putnam County, Florida
- John Dunn (miller), flour miller, parliamentarian, and philanthropist in South Australia
- John Ainsworth Dunn, furniture manufacturer in Massachusetts
- John Robert Dunn, Scottish settler in South Africa
- John Dunn (bushranger), Australian bush ranger
- John Dunn (explorer), explorer of the Canadian Arctic
- John "Pudgy" Dunn, St. Louis gangster
- John M. Dunn, American mobster, executed in 1949
- John Dunn (political theorist), professor of political theory at the University of Cambridge
- John Dunn (university president), president of Western Michigan University
- John Asher Dunn, American linguist
- John W. Dunn (architect), American architect
- Jon Michael Dunn, American educator
- John Thomas Dunn (chemist), English chemist