John Douglas may refer to:

Politics and war John Douglas, Lord of Balvenie (c. 1433–1463), Scottish soldier John Douglas, 2nd Earl of Morton (died 1513), Scottish nobleman John Douglas Sr. (1636–?), politician in Maryland John Douglas of Broughton (c. 1698–1732), Member of Parliament for Peeblesshire 1722–32 Sir John Douglas, 3rd Baronet, of Kelhead (c. 1708–1778), Member of Parliament for Dumfriesshire, 1741–47 John Erskine Douglas (c. 1758–1847), Royal Navy admiral John Douglas (Royal Marines officer) (died 1814), British officer involved in a scandal regarding an allegedly illegitimate child born to the Princess of Wales, Caroline of Brunswick John Douglas (died 1838) (1774–1838), Tory politician, Member of Parliament for Orford 1818–21 and for Minehead 1822–26 John Douglas, 7th Marquess of Queensberry (1779–1856), Scottish Whig politician John Douglas (British Army officer) (1817–1888), British general John Douglas (Connecticut politician), member of the General Court of the Colony of Connecticut in 1669–70 John Douglas (Queensland politician) (1828–1904), Premier of Queensland John Douglas (colonial administrator) (1835–1885), Irish governor of Ceylon John Douglas, 9th Marquess of Queensberry (1844–1900), Scottish nobleman John Brown Douglas (1871–1933), politician in Nova Scotia, Canada John Carey Douglas (1874–1926), politician in Nova Scotia, Canada John Henry Douglas (1851–1930), politician in Ontario, Canada John Taylor Douglas (1892–1976), politician in Saskatchewan, Canada John Douglas (Irish politician) (1912–1982), senator 1954–57 John Douglas, 21st Earl of Morton (1927–2016), Scottish peer and landowner John St Leger Douglas, British member of parliament for Weobley

Religion John Douglas (archbishop of St Andrews) (1494–1574), Scottish archbishop and Chancellor of the University of St. Andrews John Douglas (bishop of Salisbury) (1721–1807), Scottish bishop and literary critic John Waldo Douglas (1818–1883), American minister John Albert Douglas (1868–1956), Church of England priest

Sport Johnny Douglas (1882–1930), English cricket captain and 1908 Olympic middleweight boxing champion John Douglas (baseball) (1917–1984), American baseball player John Douglas (boxer) (born 1971), Guyanese boxer John Douglas (rugby union) (1934–2025), Scottish international rugby player John Douglas (fencer) (born 1943), Australian Olympic fencer John Douglas (defensive back) (1945–2005), American football player John Douglas (linebacker) (born 1945), American football player John Douglas (sportsman) (born 1951), Australian rules footballer and cricketer John Douglas (basketball) (born 1956), American basketball player John Douglas (footballer) (born 1961), English footballer Jon Douglas (1936–2010), American tennis and American football player

Other John Douglas (lithotomist) (died 1743), Scottish surgeon John Douglas (Scottish architect) (c. 1709–1778) John William Douglas (1814–1905), English entomologist John Douglas (English architect) (1830–1911), British architect Johnny Douglas (conductor) (1920–2003), English composer, musical director and string arranger John W. Douglas (1921–2010), American attorney and civil rights advocate John E. Douglas (born 1945), FBI criminal profiler John Douglas (conductor) (1956–2010), American conductor John Primrose Douglas, honorary surgeon to the Queen Jacksfilms (John Patrick "Jack" Douglass; born 1988), American Internet personality

See also Jack Douglas (disambiguation) John Douglass (disambiguation) Jonathan Douglas (disambiguation)