John Farley may refer to:

  • John H. Farley (1846–1922), mayor of Cleveland, Ohio
  • John Murphy Farley (1842–1918), Irish-American Roman Catholic archbishop and cardinal
  • John Farley (pilot) (1933–2018), British test pilot
  • John Farley (historian) (1936–2015), Canadian science historian
  • John Farley (actor) (born 1968), American actor and comedian
  • John Wells Farley (1878–1959), American football player and coach
  • John W. Farley (1948–2022), American physicist
  • John J. Farley III (born 1942), judge of the United States Court of Appeals

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  • John Farley (MP), member of parliament (MP) for Gloucester

See also

  • John Farley Leith (1808–1887), MP for Aberdeen
  • John Farleigh (1900–1965), English engraver and illustrator