Hewitson may refer to:
- Bob Hewitson (1884–1957), professional footballer
- Bobby Hewitson (1892–1969), the first curator of the Hockey Hall of Fame in Toronto, Ontario, Canada
- Iain Hewitson (born 1948), New Zealand-born chef who moved to Australia in 1972
- James Hewitson VC (1892–1963), English recipient of the Victoria Cross
- Laura Hewitson, British-born primate researcher noted for her work in the fields of reproductive biology and behaviour
- Mark Hewitson (1897–1973), British trade union official and Labour Party politician
- William Chapman Hewitson (1806–1878), British naturalist from Newcastle upon Tyne