Herseth is a surname. Notable people with the surname include:
Adolph Herseth (1921–2013), American trumpeter Erik Herseth (1892–1993), Norwegian sailor and Olympic gold medallist Læge Storm Herseth (1897–1985), Norwegian chess player Lars Herseth (born 1946), American politician from South Dakota Lorna Herseth (1909–1994), American politician from South Dakota Max Herseth (1892–1976), Norwegian rower and Olympic bronze medallist Ralph Herseth (1909–1969), American politician from South Dakota Stephanie Herseth Sandlin, born 1970, American politician, granddaughter of Ralph
See also Herseth family, American political family including Ralph and Stephanie