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