John M. Smith

John M. Smith may refer to:


 * John M. Smith (politician, born 1872), American businessman and politician.
 * John M. C. Smith (1853–1923), American politician
 * John Manners Smith (1864–1920), Chief Commissioner of Ajmer-Merwara
 * Frederick Smith (Conservative MP) (John Mark Frederick Smith, 1790–1874), British Army general and politician
 * John M. Smith (rapist), (1925–1945), war criminal killed in the 1945 Katsuyama killing incident
 * John Maynard Smith (1920–2004), British biologist
 * John McGarvie Smith (1844–1918), Australian metallurgist
 * John Montgomery Smith (1834–1903), American politician
 * John M. Smith (bishop) (1935–2019), American Roman Catholic prelate
 * John Moyr Smith (1839–1912), British artist