Gish is a surname. Notable people with the surname include:
Annabeth Gish (born 1971), American actress Dorothy Gish (1898–1968), American actress Duane Gish (1921–2013), American biochemist and prominent creationist Lillian Gish (1893–1993), American silent film actress Lou Gish (1967–2006), British actress Oliver Holmes Gish (1883–1987), American geophysicist Sheila Gish (1942–2005), British actress Sidney Gish (born 1997), American musician Warren Gish, American computational biologist
See also The Dorothy and Lillian Gish Prize, an artistic prize Gish (disambiguation)