John Harrison (1693–1776) was a clockmaker who designed and built the world's first successful marine chronometers.
John Harrison may also refer to:
Arts and entertainment John Harrison (engraver) (1872–1954), British stamp engraver M. John Harrison (born 1945), English novelist and short story writer John Kent Harrison (born 1947), Canadian television producer, director and writer John Harrison (director) (born 1948), American filmmaker, musician and composer John Harrison (fl. 1960s), British folk musician with The Watersons John Harrison (fl. 1970s), English bassist for Hawkwind
Business and industry John Harrison (Leeds) (1579–1656), English merchant and benefactor John Harrison (historian) (1847–1922), Scottish merchant, master tailor and historical author John Harrison (ice cream taster) (born 1942), American ice cream taster
Law and politics John Harrison alias Hall (died 1558), English member of parliament (MP) for Dunwich John Harrison (died 1669) (1590–1669), English politician, MP for Lancaster John Harrison (diplomat) (fl. 1610s), English diplomat John Scott Harrison (1804–1878), American congressman for Ohio; son of president William Henry Harrison and father of president Benjamin Harrison John B. Harrison (1861–1947), American jurist; Oklahoma Supreme Court justice John Harrison (Canadian politician) (1908–1964), Canadian MP for Meadow Lake, Saskatchewan John C. Harrison (judge) (1913–2011), American jurist; Montana Supreme Court justice Richard Harrison (New Zealand politician) (John Richard Harrison, 1921–2003), New Zealand politician John C. Harrison (law professor) (fl. 1970s–2020s), American law professor John Harrison (mayor) (fl. 1980s–2020s), English politician; mayor of North Tyneside
Science and medicine John Vernon Harrison (1892–1972), British structural geologist, explorer and cartographer J. Hartwell Harrison (John Hartwell Harrison, 1909–1984), American urologic surgeon John Leonard Harrison (1917–1972), British zoologist
Sports Jack Harrison (American football) (John Martin Harrison, 1875–1952), American football coach and player, politician, businessman Jack Harrison (boxer) (John Harrison, 1888–1970), British boxer John Harrison (rower) (1924–2012), Australian Olympic rower John Harrison (footballer, born 1927) (1927–2015), English professional footballer John Harrison (footballer, born 1961), English professional footballer John Harrison (sprinter) (born 1949), English sprinter
Others John Harrison (VC 1857) (1832–1865), Irish recipient of the Victoria Cross Jack Harrison (VC) (1890–1917), English army officer and recipient of the Victoria Cross John Henry Harrison (born 1883/1884), African-American lynching victim J. F. C. Harrison (John Fletcher Clews Harrison, 1921–2018), English historian
Fictional characters John Harrison (Brookside), fictional character on the defunct British TV soap opera Brookside Khan Noonien Singh, the antagonist from Star Trek Into Darkness (John Harrison given as false name) John Harrison, fictional character on the American TV series Popular
See also Jon Harrison (disambiguation) Jonathan Baxter Harrison (1835–1907), Unitarian minister and journalist Jack Harrison (disambiguation)