•
John Dunn (pioneer lawyer), coffee planter and lawyer, recipient of a 1765 land grant in Putnam County, Florida •
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 (1939–2017), American linguist •
John W. Dunn (architect), American architect •
Jon Michael Dunn (1941–2021), American educator •
John Thomas Dunn (chemist) (1858–1939), English chemist ==See also==