John Hewitt
John Hewitt may refer to:
Sports
- John Hewitt (pentathlete), British Olympic pentathlete
- John Hewitt (rugby union, born 1928), Irish rugby union player
- John Hewitt (swimmer), Welsh swimmer
- John Hewitt (rugby union, born 1960), Irish rugby union player
- John Hewitt (footballer), Scottish footballer and manager
Others
- John Hewitt (priest, died 1588), English Roman Catholic priest and Catholic martyr
- John Hewitt (priest, born 1755), Anglican priest in Ireland
- John Hill Hewitt, American composer, playwright and poet
- John Hewitt (antiquary), English antiquarian
- John Haskell Hewitt, American classical scholar and educator
- John Marshall Hewitt, American politician in Arkansas
- J. N. B. Hewitt, American linguist and ethnographer
- John Hewitt (herpetologist), South African zoologist and archaeologist
- John Hewitt (poet), poet from Northern Ireland
- John Hewitt (mayor), New Zealand politician
- John Hewitt (entrepreneur), American businessman
- John K. Hewitt, British-American behavioral geneticist