John, Johnny, or Jock Simpson may refer to:

• John Simpson (Parliamentarian), politician of the post-English Civil War period, see Thomas Kelsey
• John Simpson (Kentucky politician) (died 1813), American attorney and politician
• John Simpson (MP for Wenlock) (1763–1850), English member of parliament for Wenlock
• John Simpson (Lower Canada politician) (1788–1873), government official and politician in Quebec
• John Simpson (Niagara politician) (1807–1878), Canadian businessman and politician
• John Simpson (Ontario politician) (1812–1885), Ontario banker and member of the Senate of Canada
• Sir John Hope Simpson (1868–1961), British Liberal politician and administrator in India
• John A. Simpson (1854–1916), Canadian politician
• John Thomas Simpson (1870–1965), Conservative member of the Canadian House of Commons
• John Simpson (died 1803), British member of parliament for Mitchell
• John Simpson (Kansas politician) (born 1934), former Kansas state senator

• John Simpson, bassist in the American R&B band The S.O.S. Band
• John Simpson (artist) (1782–1847), British painter who painted The Captive Slave
• John Simpson (actor/producer), Canadian actor
• Sir John William Simpson (1858–1933), English architect
• John Simpson (architect) (born 1954), British modern-day classical architect
• John Palgrave Simpson (1807–1887), Victorian playwright
• John L. Simpson (born 1963), Australian film and theatre producer, writer and distributor
• John Simpson (journalist) (born 1944), BBC journalist, foreign correspondent and author

• John Simpson (fine arts academic), former head of the School of Fine Arts at the University of Canterbury
• John Baird Simpson (1894–1960), Scottish geologist
• John B. Simpson (born 1947), former president of the University at Buffalo
• John Wistar Simpson (1914–2007), American electrical engineer
• John Simpson (lexicographer) (born 1953)
• John Alexander Simpson (1916–2000), physicist
• John Simpson (British nuclear physicist) (born 1958)

• Jock Simpson (1886–1959), England and Blackburn Rovers footballer
• John Simpson (footballer, born 1918) (1918–2000), English footballer, played for Huddersfield Town and York City
• John Simpson (footballer, born 1933) (1933–1993), English footballer, played for Lincoln City and Gillingham
• John Simpson (boxer) (born 1983), Scottish featherweight boxer
• John Simpson (English cricketer) (born 1988), Sussex County Cricket Club
• John Simpson (New Zealand cricketer) (1907–1980), Auckland cricket team
• John Simpson (fencer) (1927–2016), Australian Olympic fencer
• John Simpson (basketball), professional basketball player
• John Simpson (American football) (born 1997), American football offensive lineman
• Johnny Simpson (1922–2010), New Zealand rugby union player
• John Simpson (rugby union) (1872–1921), Scottish rugby union player

• John Simpson (soldier) (1748–1825), American Revolutionary War soldier at the Battle of Bunker Hill
• John Simpson (VC) (1826–1884), Scottish recipient of the Victoria Cross
• John Simpson Kirkpatrick (1892–1915), Australian World War I war hero (who enlisted as "John Simpson")
• John Simpson (RAF officer) (1907–1967), senior RAF officer in the mid-1950s and eighth Commandant Royal Observer Corps
• John Simpson (British Army officer) (1927–2007), British Army officer and Director SAS

• John Simpson (journalist/consumer advocate) (born 1948), American consumer rights advocate and former journalist
• John Simpson (Presbyterian) (1740–1808), of South Carolina, in the American Revolutionary War
• John Simpson (Unitarian) (1746–1812), of Bath, English Unitarian minister and religious writer
• John Woodruff Simpson (1850–1920), American lawyer and founding partner at Simpson Thacher & Bartlett
• John D. Simpson (1901–1988), Canadian businessman in the Canadian Mining Hall of Fame
• John Milton Bryan Simpson (1903–1987), American judge
• John Simpson (police official) (1932–2017), director of the U.S. Secret Service and Interpol
• John Simpson (priest) (1933–2019), Anglican clergyman

• John Simson (1668–1740), Scottish theologian
• Jack Simpson (disambiguation)
• Jackie Simpson (disambiguation)

Topics referred to by the same term

This disambiguation page lists articles about people with the same name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.