John Maddox (disambiguation)

John Maddox may refer to:


 * John Maddox (1925–2009), British scientist
 * John Maddox (cricketer) (born 1930), Australian former cricketer
 * John Maddox (politician), American politician
 * Johnny Maddox (1927–2018), American ragtime pianist
 * John Medex Maddox (1789–1861), British playwright and theatre manager
 * John W. Maddox (1848–1922), U.S. Representative from Georgia