Sandwith is a surname. Notable people with the surname include:
Arnold Sandwith Ward (1876–1950), British journalist and Conservative politician Bill Sandwith (1922–99), Australian politician Charles Sandwith Campbell (1858–1923), Canadian benefactor, Montreal's Campbell Concerts and Campbell Parks Eamon Sandwith, vocalist and bassist of The Chats Elizabeth Sandwith Drinker, American Quaker diarist Humphry Sandwith, English army physician, writer and activist Humphry Sandwith (1792–1874), English physician and prominent Methodist Kevin Sandwith (born 1978), English football player Noel Yvri Sandwith (1901–1965), British botanist whose standard author abbreviation is Sandwith Noelle Sandwith (1927–2006), English artist Terran Sandwith (born 1972), Canadian ice hockey player Thomas Backhouse Sandwith, British diplomat
See also Arnold Sandwith Ward, English journalist and politician Henry Sandwith Drinker, American lawyer and amateur musicologist John Sandwith Boys Smith, British priest and academic