John Devereux
John Devereux may refer to:
- John Devereux, Lord of Munsley, Anglo-Norman nobleman in the time of Edward I and Edward II of England
- John Devereux, 1st Baron Devereux, peer in the reign of King Richard II of England
- John Devereux (died 1419), MP for Dorset
- John Devereux, 9th Baron Ferrers of Chartley, English peer
- John C. Devereux, mayor of Utica, New York and noted Roman Catholic
- , Irish recruiter of troops for Simón Bolívar, Latin American diplomat, and confidence trickster
- John Devereux (politician), Australian politician
- John Patrick Devereux, American soccer player
- John Devereux (rugby), Welsh rugby league and rugby union footballer and coach
- John Thomas Devereux, member of the UK parliament for Wexford Borough, 1847–1859
- John Devereux (academic), Australian professor of law
- John Devereux (bishop), 16th-century religious leader in Ireland
- John Henry Devereux, American architect and builder