Swynnerton is an English surname. Notable people with the surname include:
Annie Swynnerton, English painterCharles Francis Massy Swynnerton, English naturalistHumphrey Swynnerton, English politicianSir John de Swynnerton, English law enforcement official (14th century)John de Swynnerton, English law enforcement official (14th century)Sir John Swynnerton, English politician and merchant taylorJohn Swynnerton (c.1349-c.1427), English politician (and maybe law enforcement official (14th century))John Swynnerton, English law enforcement official (16th century)Margaret Swynnerton, daughter of Humphrey that married into the Vernon family of Sudbury and Hilton