John McIntosh

John or Jack McIntosh may refer to:
 * John McIntosh (farmer) (1777–c. 1846), American-born Canadian farmer credited with discovering the McIntosh apple
 * John McIntosh (reformer) (1796–1853), businessman and political figure in Upper Canada
 * John Baillie McIntosh (1829–1888), Union Army general in the American Civil War
 * John McIntosh (Quebec politician) (1841–1904), member of the Legislative Assembly of Quebec and the Canadian House of Commons
 * John F. McIntosh (1846–1918), Scottish locomotive engineer
 * John Donald McIntosh (1850–?), politician in Manitoba, Canada
 * John William McIntosh (c. 1870–1939), physician and politician in British Columbia, Canada
 * John Charles McIntosh (1874–1940), lawyer and political figure in British Columbia
 * Jack McIntosh (English footballer) (1876–?), English football forward
 * Jack McIntosh (Australian footballer) (1878–1944), Australian rules footballer for Melbourne
 * John H. McIntosh (1879–1925), American college football coach
 * John Cowe McIntosh (1892–1921), British-born Australian aviator
 * John McIntosh (Australian politician) (1901–1971), New South Wales politician
 * Jack McIntosh (politician) (1909–1988), member of the Canadian House of Commons from Saskatchewan
 * John McIntosh (footballer) (born 1943), Australian rules footballer for Claremont and St Kilda
 * John McIntosh (educator) (born 1946), British headmaster of the London Oratory School
 * Jack McIntosh (strongman) (born 1988), British strongman competitor