John Barker may refer to: Business John Barker (advertising executive) (born 1965), founder of Barker/DZP John Barker (businessman) (1847–1925), Australian John H. Barker, American businessman, owner of the John H. Barker Mansion in Michigan City, Indiana Politics John Barker (died 1589) (c. 1532–1589), MP for Ipswich John Barker (died 1618) (1579–1618), MP for Shrewsbury John Barker (Bristol MP) (died 1636), English politician Sir John Barker, 4th Baronet (1655–1696), English MP for Ipswich John Barker (diplomat) (1771–1849), English diplomat and horticulturist Sir John Barker, 1st Baronet (1840–1914), founder of Barkers department store in Kensington, London, and Liberal MP John Barker (MP for Ilchester), English merchant and politician John Barker (Parliamentarian), English draper and politician, MP for Coventry John Barker (parliamentary officer) (1815–1891), clerk of the colonial Victorian (Australia) parliament John Barker (Australian politician) (born 1947) John Barker (Philadelphia) (c. 1746–1818), Mayor of Philadelphia, Pennsylvania from 1807 to 1810 and 1812–1813 John Barker (Kansas politician) (born 1951), member of the Kansas House of Representatives John Barker, author and member of the militant group The Angry Brigade Religion John Barker (minister) (1682–1762), Presbyterian divine John Barker (Master of Christ's College, Cambridge) (1728–1808), priest and academic John Barker (priest) (1912–1992), Dean of Cloyne Sports John Barker (Australian footballer) (born 1975), for Hawthorn, Brisbane Lions, and Fitzroy John Barker (English footballer) (1948–2004) John Barker (Scottish footballer) (1869–1941) Other John Barker (scholar) (fl. c. 1471–1482), Old Etonian logician John Barker (died 1653), English ship-owner John Barker (medical writer) (1708–1748), medical writer John William Barker (1872–1924), American general John Barker (RAF officer) (1910–2004), commander of the Royal Ceylon Air Force John Barker (architect) (1940–2010), Australian architect John Barker (filmmaker), South African filmmaker John W. Barker (1933–2019), American historian John Barker (ballet) (1929–2020), American dancer, ballet teacher and translator John Barker (died 1968), psychiatrist who set up the British Premonitions Bureau