Gaucher is a French surname. Notable people with the surname include:
Charles-Étienne Gaucher (1740–1804), French engraver Elias Gaucher, French publisher Eric Gaucher (born 1972), American biologist Guillaume Gamelin Gaucher (1810–1885), Canadian businessman and politician Guy Gaucher (1930–2014), French Catholic Discalced Carmelite bishop and theologian Jacob Gaucher (born 2001), Canadian ice hockey player Jules Gaucher (1905–1954), French Army officer Kim Gaucher (born 1984), Canadian women's basketball player Nathan Gaucher (born 2003), Canadian ice hockey player Philippe Gaucher (1854–1918), French dermatologist Robert Gaucher (born 1969), American admiral Roland Gaucher (1919–2007), French journalist and politician Ryan Gaucher (born 1978), Canadian ice hockey player Yves Gaucher (1934–2000), Canadian painter and printmaker
See also Gaucher's disease