Elderkin is a surname. Notable persons with the surname include:
Angel Elderkin (born 1977), American basketball coach Angus Elderkin (1896 – 1985), Canadian politician Edward Elderkin, builder of Edward Elderkin House Kate Elderkin (1897–1962), American archaeologist, art historian Mark Elderkin (born 1963), American entrepreneur Nabil Elderkin, Australian photographer Noble S. Elderkin (1810–1875), American politician Susan Elderkin (born 1968), English author Thomas Elderkin (1909–1961), English cricketer Aaron Elderkin (born 1989), Voisey's Bay Chief Engineer
Other Elderkin Potter (1782–1845), American politician and lawyer from Ohio