John Devereux may refer to:
John Devereux, Lord of Munsley (c. 1253–1316), Anglo-Norman nobleman in the time of Edward I and Edward II of England John Devereux, 1st Baron Devereux (died 1393), peer in the reign of King Richard II of England John Devereux (died 1419), MP for Dorset John Devereux, 9th Baron Ferrers of Chartley (c. 1461–1501), English peer John C. Devereux (1774–1848), mayor of Utica, New York and noted Roman Catholic (1778–1860), Irish recruiter of troops for Simón Bolívar, Latin American diplomat, and confidence trickster John Devereux (politician) (born 1946), Australian politician John Patrick Devereux (born 1963), American soccer player John Devereux (rugby) (born 1966), Welsh rugby league and rugby union footballer and coach John Thomas Devereux (died 1885), member of the UK parliament for Wexford Borough, 1847–1859 John Devereux (academic) (born 1965), Australian professor of law John Devereux (bishop), 16th-century religious leader in Ireland John Henry Devereux (1840–1920), American architect and builder
See also John Devereux Ward (1925–2010), British Conservative Party politician