Willcox is a surname. Notable people with the surname include:
Anita Parkhurst Willcox, American artist, feminist and pacifistSir Charles Willcox, South Australian businessman and politician, and a mayor of the City of AdelaideCornelis DeWitt Willcox, American soldier and military writerOrlando Bolivar Willcox, American Civil War generalPeter Willcox, American Greenpeace activistSheila Willcox, British equestrianSpiegle Willcox, American jazz saxophonistTim Willcox, British television personalityToyah Willcox, British singer and actressWalter Francis Willcox, American statistician