John Chapman may refer to:

Military

John Chapman (Medal of Honor, 1865) (1844–1905), French soldier who fought in the American Civil War John Chapman (Australian Army officer) (1896–1963), Australian Army general of WWII John A. Chapman (1965–2002), USAF Combat Controller, posthumously awarded the Medal of Honor

Politicians

United Kingdom John Chapman (Leicester MP) represented Leicester (UK Parliament constituency) Sir John Chapman, 2nd Baronet (c. 1710–1781), British Member of Parliament for Taunton, 1741–1747 John Chapman (Grimsby MP) (1810–1877), British Member of Parliament for Grimsby, 1862–1865 and 1874–1877

United States John Chapman (Pennsylvania politician) (1740–1800), United States Representative from Pennsylvania John Grant Chapman (1798–1856), Maryland politician John Lee Chapman (1811–1880), American politician John William Chapman (1894–1978), Lieutenant Governor of Illinois

Other countries John Otho Chapman (1931–2011), politician in Saskatchewan, Canada John Chapman (Australian politician) (1879–1931), Australian senator

Sportspeople Jack Chapman (baseball) (1843–1916), baseball player and manager Jack Chapman (footballer) (1895–?), English footballer John Chapman (baseball) (1899–1953), former shortstop John Chapman (cricketer, born 1877) (1877–1956), English cricketer John Chapman (cricketer, born 1814) (1814–1896), English cricketer John Chapman (New Zealand cricketer) (1865–1949), New Zealand cricketer John Chapman (football manager) (1882–1948), footballer and manager Johnny Chapman (born 1967), NASCAR driver John Chapman (rugby league) (born 1954), Australian rugby league player John Chapman (harness racing) (1928–1980), Canadian driver

Religion John Wilbur Chapman (1859–1918), American Presbyterian evangelist John Chapman (priest) (1865–1933), British priest, abbot, and religious scholar John Chapman (evangelist) (1930–2012), Australian evangelist John Chapman (bishop), Anglican bishop in Canada

Writers John Chapman (theologian) (1704–1784), English cleric and scholar John Chapman (engineer) (1801–1854), English political and economic writer John Jay Chapman (1862–1933), American essayist and dramatist John Chapman (screenwriter) (1927–2001), English playwright and screenwriter

Other people Johnny Appleseed (John Chapman, 1774–1845), pioneer nurseryman and missionary John Gadsby Chapman (1808–1889), American artist John Chapman (publisher) (1821–1894), publisher of the Westminster Review John Ratcliffe Chapman (1815–1899), British-American rifle scope designer John Henry Chapman (1860–1942), British businessman and philatelist John Herbert Chapman (1921–1979), Canadian space researcher John Chapman (artist) (born 1946), British artist John Norman Chapman (born 1947), American murderer John Chapman (producer), British television producer

See also Jonathan Chapman (1807–1848), American politician