John Fearn

John Fearn may refer to:
 * John Fearn (whaler) (fl. 1798), English whaling ship captain who was the first European to travel to Nauru
 * John Fearn (philosopher) (1768–1837), British philosopher and retired Royal Navy officer
 * John Walker Fearn (1832–1899), American diplomat
 * John Russell Fearn (1908–1960), British writer