John or Johnny Jackson may refer to:
Entertainment
Art
John Baptist Jackson (1701–1780), British artist
John Jackson (painter) (1778–1831), British painter
John Jackson (engraver) (1801–1848), English wood engraver
John Richardson Jackson (1819–1877), English engraver
John Adams Jackson (1825–1879), American sculptor
J. B. Jackson (1909–1996), writer and sketch artist in landscape design
John Reno Jackson (born 1995), Caymanian artist
Music
John Enderby Jackson (1827–1903), English musician and composer
John Jackson (blues musician) (1924–2002), American
John Jackson (musician), guitarist for the Jayhawks
Johnny Jackson (musician) (1955–2006), drummer with the Jackson 5
John Jackson, legal name of rapper Fabolous
Other entertainment
John Jackson (travel writer) (died 1807), British traveler and writer
John G. Jackson (writer) (1907–1993), African-American cultural historian and writer J. J. Jackson (media personality) (1941–2004), American radio and television personality John M. Jackson (born 1950), American actor best known for playing the J.A.G. on JAG John E. Jackson (make-up artist), American make-up artist John Jackson (writer), English television writer
Politics
U.K. John Jackson (Pontefract MP) (died 1637), English politician; MP 1624–1629 Sir John Jackson, 1st Baronet (1763–1820), British businessman, MP for Dover and a baronet John Jackson (engineer) (1851–1919), British engineer and politician, MP for Plymouth Devonport, 1910–1918 John Arthur Jackson (1862–1937), British Conservative Party politician John Jackson (South East Derbyshire MP) (1919–1976), British Conservative politician John Edward Jackson (diplomat) (1925–2002), British diplomat
U.S. John G. Jackson (politician) (1777–1825), Virginia politician and federal judge John Jackson (mayor) (1809–1887), mayor of Tampa, Florida John Jay Jackson Jr. (1824–1907), Virginia and West Virginia politician and federal judge John Jackson (Richmond politician) (1848–1910), member of the Virginia House of Delegates John B. Jackson (1862–1920), U.S. diplomat, United States Ambassador to Serbia John Holmes Jackson (1871–1944), mayor of Burlington, Vermont John S. Jackson (Wisconsin politician) (1874–1960), Wisconsin farmer and politician
Other political figures
John Rawleigh Jackson (1780–?), planter, slave-owner and politician in Jamaica
John Alexander Jackson (1809–1885), Colonial Treasurer of South Australia
John Alexander Jackson (Tasmanian politician) (1844–1889), Attorney-General of Tasmania, 1872 to 1873 John Robert Jackson (1859–1925), rancher and politician in British Columbia, Canada
Religion
John Jackson (minister) (1621–1693), English nonconformist
John Jackson (military chaplain) (died 1717), Anglican priest and first chaplain to the garrison at St John's, Newfoundland John Jackson (controversialist) (1686–1763), English clergyman John Jackson (archdeacon of Clogher) (fl. 1762–1783) John Edward Jackson (antiquarian) (1805–1891), English cleric and archivist John Jackson (bishop) (1811–1885), bishop of Lincoln and of Bishop of London John Long Jackson (1884–1948), bishop of the Episcopal Diocese of Louisiana John Paul Jackson (1950–2015), American author, teacher, founder of Streams Ministries International
Science
John Hughlings Jackson (1835–1911), neurologist, namesake of Jacksonian seizure
John Price Jackson (1868–1948), American electrical engineer and academic
J. Wilfrid Jackson (1880–1978), British geologist and paleontologist
John Jackson (astronomer) (1887–1958), Scottish astronomer
John Meadows Jackson (1907–1998), British mathematician and physicist
John S. Jackson (1920–1991), Irish geologist
John David Jackson (physicist) (1925–2016), Canadian–American physicist and author of a graduate textbook on electrodynamics John P. Jackson, American physicist and leading researcher on the Shroud of Turin