John Hewitt
John Hewitt is the name of the following people:
- John Hewitt (arms historian) (1807–1878), English antique dealer and arms historian
- John Hewitt (zoologist) (1880–1961), South African zoologist and archaeologist of British origin
- John Hewitt (modern pentathlon) (born 1925), British modern pentathlete
- John Hewitt (soccer player) (born 1963), Scottish soccer player
- John Harold Hewitt (1907-1987), Irish poet
- John Theodore Hewitt (1868–1954), British chemist
