Derby is a surname. Notable people with the surname include:

Alfred Thomas Derby (1821–1873) English painter, son of William Derby Brown Derby (actor) (1914-2000), Scottish actor Dean Derby (1935–2021), American retired National Football League player Ethel Roosevelt Derby (1891-1977), youngest daughter of President Theodore Roosevelt, instrumental in preserving his legacy Elias Hasket Derby (1739-1799), American merchant Fred Derby (1940-2001), Surinamese politician and trade unionist George Derby (1823-1861), American humorist George Derby (baseball) (1857-1925), American Major League Baseball pitcher James Cephas Derby (1818-1892), American book publisher Orville Adalbert Derby (1851-1915), American geologist who worked in Brazil Pat Derby (1942–2013), British-born American animal trainer Sylvester Derby (1892–1974), American college football head coach William Derby (1786–1847) English portraitist, miniature painter and copyist, father of Alfred Thomas Derby

See also John de Derby, Archdeacon of Barnstaple and Dean of Lichfield from 1355 to 1358 Alchmund of Derby (d. c. 800), Anglo-Saxon saint Derby (disambiguation)