Whiddon is a surname. Notable people with the surname include:
Frederick Palmer Whiddon (1930–2002), American university founder and president Harry Whiddon (1878–1935), Australian cricketer Horace Whiddon (1879–1955), Australian politician John Whiddon (died 1576), English judge Oliver Whiddon, 16th-century British Anglican archdeacon Orren R. Whiddon (1935–2016), United States Army general Samuel Whiddon (1848–1905), English-born Australian politician Trent Whiddon, Australian dancer and choreographer