John Dillon (disambiguation)
John Dillon (1851–1927) was an Irish nationalist politician.
John Dillon may also refer to:
- John Dillon (baseball), 19th-century baseball player
- John Dillon (comedian), (1831-1913), popular Chicago-based American comedian
- John Dillon, one-half of the Dillon Brothers vaudeville group in late 1800s.
- John Dillon, original member of southern rock band Ozark Mountain Daredevils
- John Andrew Dillon (1923-2005), American physicist, administrator, Professor at the University of Louisville
- John Francis Dillon (commissioner) (1866–1927), one of the first members of the Federal Radio Commission in the United States
- John Francis Dillon (director) (1884–1934), American film director
- John Forrest Dillon (1831–1914), American jurist from Iowa
- John "Hook" Dillon (1924–2004), American basketball player for the University of North Carolina
- John J. Dillon, American politician and lawyer who served as the Indiana Attorney General from 1965–1969
- John M. Dillon, Irish philosopher and neo-platonic scholar
- John T. Dillon (actor) (1876–1937), American film actor
- John T. Dillon, American business executive
- John Webb Dillon (1877–1949), British film actor
- John Dillon (English footballer), player for Sligo Rovers F.C.
- Jack Dillon, boxer