Hathorn is a surname. Notable people with the surname include:
David Hathorn (born 1962), South African businessmanGina Hathorn (born 1946), British alpine skierHenry H. Hathorn (1813–1887), American politicianJohn Hathorn (1749–1825), American politicianLibby Hathorn, Australian writerLinda Hathorn (born 1982), Canadian women's soccer playerMaitland Hathorn (1878–1920), South African cricketerRichmond C. Hathorn (1893-1941), member of the Louisiana House of Representatives from 1936 to 1940