John Moffat may refer to: * John Alston Moffat (1825–1904), Canadian entomologist * John Moffat (physicist) (born 1932), professor and physicist * John Keith Moffat (born 1943), professor and biophysicist at the University of Chicago * John Moffat (missionary) (1835–1918), British missionary and imperial agent in southern Africa * John Moffat (mining pioneer) (1841–1918), Scottish-born mining entrepreneur in Australia * John Moffat (Royal Navy officer) (1919–2016), Royal Navy Fleet Air Arm pilot * John Moffatt (actor) (1922–2012), English actor and playwright

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