John, Jack, Johnny, Jon, or Jonathan Dunn may refer to:

• John Dunn (pipemaker) (c. 1764–1820), inventor of keyed Northumbrian smallpipes
• John Dunn (actor) born O'Donoghue (1813–1875), Australian comic actor
• John Millard Dunn (1865–1936), organist and choirmaster
• John Dunn (violinist) (1866–1940), English violinist
• Johnny Dunn (1897–1937), American jazz trumpeter
• Jon Dunn (musician), American musician
• John Dunn (software developer) (born 1943), American musician and art software developer
• John Dunn (animator) (1919–1983), cartoon writer for DePatie-Freleng and Looney Tunes
• John W. Dunn (painter) (1891–1975), American painter
• John Dunn (radio presenter) (1934–2004), BBC Radio 2 DJ

• John Henry Dunn (1792–1854), businessman and political figure in Canada West
• John Dunn Jr. (assemblyman) (1827–1909), Wisconsin politician
• John T. Dunn (1838–1907), U.S. Representative from New Jersey
• John Dunn Jr. (1830–1892), South Australia politician
• John Freeman Dunn (1874–1954), English banker and stockbroker, barrister and Liberal Party politician
• John Dunn (1820–1860), British Conservative politician

• John Woodham Dunn (1812–1883), Anglican vicar of Warkworth, Northumberland
• John Joseph Dunn (1870–1933), American prelate of the Catholic Church

• Jack Dunn (baseball) (1872–1928), minor league baseball owner and manager
• John Dunn (cricketer) (1862–1892), English cricketer
• John Dunn (footballer, born 1888) (1888–1968), 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) (1881–1947), Australian rules footballer for Collingwood
• Jon Dunn (born 1981), American football player
• Jack Dunn (soccer), American soccer player
• Jack Dunn (figure skater) (1917–1938), 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) (1918–2003), New Zealand rugby union player

• John Dunn (miller) (1802–1894), flour miller, parliamentarian, and philanthropist in South Australia
• John Ainsworth Dunn (1831–1915), furniture manufacturer in Massachusetts
• John Robert Dunn (1833–1895), Scottish settler in South Africa
• John Dunn (bushranger) (1846–1866), Australian bush ranger
• John Dunn (explorer) (born 1954), explorer of the Canadian Arctic
• John "Pudgy" Dunn (1896–1937), St. Louis gangster
• John M. Dunn (1910–1949), American mobster, executed in 1949
• John Dunn (political theorist) (born 1940), professor of political theory at the University of Cambridge
• John Dunn (university president) (born 1945), president of Western Michigan University
• John Asher Dunn, American linguist
• John W. Dunn (architect), American architect
• Jon Michael Dunn (1941–2021), American educator
• John Thomas Dunn (chemist) (1858–1939), English chemist

• John Donne (1572–1631), English poet, satirist, lawyer and priest
• John Dunne (disambiguation)
• Dunn (surname)

Topics referred to by the same term

This disambiguation page lists articles about people with the same name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.