Maddocks is a surname. Notable people with the surname include:
- Ada Maddocks (1927–2007), British trade unionist
- Ann Maddocks (1704–1727), Welsh maid and a figure in Welsh folklore
- Anne Maddocks (1911–2006), English musician
- Charné Maddocks, South African field hockey player
- Chris Maddocks, English racewalker
- David Maddocks, Welsh rugby union player
- Henry Maddocks (disambiguation), multiple people
- Ian Maddocks, Australian cricketer
- Kenneth Maddocks (1907–2001), British colonial official
- Len Maddocks (1926–2016), Australian cricketer
- Margaret Maddocks (1906–1993), English writer
- Melrick Maddocks, South Africa field hockey
- Mildred Maddocks, American cooking journalist and writer
- Morris Maddocks (1928–2008), English Anglican bishop
- Peter Maddocks, English cartoonist
- Richard Maddocks (1928–1968), Australian cricketer
- Rick Maddocks, Canadian writer and musician
