John Gunn may refer to:
Sports John Gunn (cricketer) (1876–1963), English cricketer John Oliver Gunn Jr. (1939–2010), American race car driver Salvatore Sincere (born 1966), wrestler who used the ring name Johnny Gunn JD Gunn (born 2000), Panamanian footballer John Gunn (19th-century footballer), played for Bolton Wanderers, Manchester City and Clyde, see List of Manchester City F.C. players (1–24 appearances)
Politics J. A. W. Gunn (1937-2023), Canadian political philosopher John Gunn (Australian politician) (1884–1959), 29th Premier of South Australia John Gunn (New South Wales politician) (1860–1910), Australian politician and pastoralist John Gunn (Manitoba politician) (1826–1898), politician in Manitoba, Canada
Science J. B. Gunn (1928–2008), discovered the Gunn effect and invented the Gunn diode John Currie Gunn (1916–2002), Scottish scientist John Gunn (geologist) (1801–1890), English geologist
Writing and academia John Gunn (Australian writer) (born 1925), Australian writer, sailor and aviation journalist John Alexander Gunn (1896–1975), philosopher John Gunn (Scottish writer) (c. 1765–c. 1824), Scottish cellist, writer on music, and professor
Religion John R. Gunn (1877–1956), American clergyman John Edward Gunn (1863–1924), Irish-born prelate of the Roman Catholic Church
See also: John Gunne John Gunne (Manitoba politician) (1870–1935), Canadian politician John Gunne (English politician) (fl. 1397)