John Hearn

John Hearn or Hearne may refer to:

• John Hearn (politician) (1827–1894), Irish-born Canadian merchant and politician
• John Gabriel Hearn (1863–1927), Canadian businessman and political figure
• John Graham Hearn (1929–1980), British speed skater
• J. T. Hearne (1867–1944), British cricket bowler
• J. W. Hearne (1891–1965), British cricket all-rounder
• John Hearne (lawyer) (1893–1969), Irish legal scholar and diplomat
• John Hearne (writer) (1926–1994), Canadian-born Jamaican writer and educator
• John Hearne (composer) (born 1937), Scottish composer, conductor and singer
• Jack Hearn (born 1923), born John Hearn, British judo instructor