Willock is a surname. People having this surname include
Andy Willock (b. 1964), a former English football midfielder
Brad Willock (b. 1962), a volleyball player
Calum Willock (b. 1981), an international footballer
Colin Willock (1919 - 2005), a magazine editor and a nature documentary producer
Dave Willock (1909 – 1990), an American character actor
John Willock also (Willocks) (1515 – 1585), Scottish reformer
Lieutenant-Colonel Sir Henry Willock, British Envoy to Persia 1815-1826