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