John Trevanion (1613–1643) was an English politician.
John Trevanion may also refer to:
- John Trevanion (merchant), English merchant and mayor, briefly MP for Dartmouth in 1529
- John Trevanion (died 1810), MP for Dover 1774-1806
See also
edit- John Bettesworth-Trevanion (1780–1840), Cornish politician