John Monteith (1929–2012) was a British scientist.
John Monteith may also refer to: John Monteith (actor) (1948–2018), American actor and comedian John Monteith (footballer) (1883–1918), Scottish footballer John Monteith (minister) (1788–1868), co-founder of the University of Michigan John Monteith (Wisconsin politician) (1829–1901), Wisconsin politician John C. Monteith (1853–1940), Canadian politician