John Hewitt may refer to:
Sports John Hewitt (pentathlete) (born 1925), British Olympic pentathlete John Hewitt (rugby union, born 1928) (1928–2019), Irish rugby union player John Hewitt (swimmer) (1941–2017), Welsh swimmer John Hewitt (rugby union, born 1960), Irish rugby union player John Hewitt (footballer) (born 1963), Scottish footballer and manager
Others John Hewitt (priest, died 1588), English Roman Catholic priest and Catholic martyr John Hewitt (priest, born 1755) (1755–1804), Anglican priest in Ireland John Hill Hewitt (1801–1890), American composer, playwright and poet John Hewitt (antiquary) (1807–1878), English antiquarian John Haskell Hewitt (1835–1920), American classical scholar and educator John Marshall Hewitt (1841–1888), American politician in Arkansas J. N. B. Hewitt (John Napoleon Brinton Hewitt, 1859–1937), American linguist and ethnographer John Hewitt (herpetologist) (1880–1961), South African zoologist and archaeologist John Hewitt (poet) (1907–1987), poet from Northern Ireland John Hewitt (mayor) (1943–2011), New Zealand politician John Hewitt (entrepreneur) (born 1949), American businessman John K. Hewitt (born 1952), British-American behavioral geneticist
Other uses The John and Vivian Hewitt Collection of African-American Art
See also Jonathan Hewitt, EastEnders character Jack Hewitt (born 1951), American racing driver John Hewett (disambiguation) John Hewet (disambiguation)