John Seddon (disambiguation)

John Seddon is a British psychologist.

John Seddon may also refer to:


 * John Seddon (politician) (1934–2021), New Zealand politician and chief executive
 * John Pollard Seddon (1827–1906), British architect
 * John Seddon (Unitarian) (1719–1769), English Unitarian minister
 * John Seddon of Warrington (1725–1770), English dissenting minister, rector of Warrington Academy