Underdown is a surname. Notable people with the surname include:
- Charles Edward Underdown (Edward Underdown) (1908–1989), English actor
- David Underdown (1925–2009), English historian
- 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
This page lists people with the surname Underdown.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.