Underdown

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


 * David Edward Underdown (David Underdown) (1925–2009), English historian
 * Charles Edward Underdown (Edward Underdown) (1908–1989), English actor
 * Emanuel Maguire Underdown (1831–1913), English barrister, author and industrialist
 * Emily Underdown (1863–1947), English author
 * George Underdown (1859–1895), English cricketer
 * Harry Charles Bailee Underdown (1877–1963), English barrister and industrialist
 * James Underdown (born 1960), executive director of The Center for Inquiry (CFI) West in Los Angeles
 * Thomas Underdown (16th century), English poet and translator