Maddocks is a surname. Notable people with the surname include:
Ada Maddocks (1927–2007), British trade unionistAnn Maddocks, Welsh maid and a figure in Welsh folkloreAnne Maddocks (1911–2006), English musicianChris Maddocks (born 1957), English racewalkerDavid Maddocks (born 1983), Welsh rugby union playerHenry Maddocks (disambiguation), multiple peopleIan Maddocks (born 1951), Australian cricketerKenneth Maddocks (1907–2001), British colonial officialLen Maddocks (1926–2016), Australian cricketerMargaret Maddocks (1906–1993), English writerMorris Maddocks (1928–2008), English Anglican bishopPeter Maddocks (born 1928), English cartoonistRichard Maddocks (1928–1968), Australian cricketerRick Maddocks (born 1970), Canadian writer and musician