John Harrington or Harington may refer to:
Politicians John Harington, 1st Baron Harington (1281–1347) John Harington, 2nd Baron Harington (1328–1363) John Harington, 4th Baron Harington (1384–1418) John Harington (died 1553), MP for Rutland John Harington (died 1582), MP for Pembroke Boroughs, Old Sarum and Caernarvon Boroughs; official of Henry VIII of England John Harrington (died 1654) (1589–1654), English politician John Harington, 1st Baron Harington of Exton (1539–1613), English politician John Harington, 2nd Baron Harington of Exton (1592–1614), English courtier John Harrington (Parliamentarian) (1627–1700), English politician John Harrington (American politician) (born 1956), American politician and member of the Minnesota State Senate
Others John Harrington of Hornby (died 1359), English knight John Harrington (knight) (died 1460), Yorkist knight during the Wars of the Roses John Harington (writer) (1560–1612), English writer, of Kelston, inventor of the flushing toilet John Harrington (Medal of Honor) (1848–1905), Medal of Honor recipient for the Indian Wars John L. Harrington (1868–1942), American bridge engineer John Peabody Harrington (1884–1961), American ethnologist John Harrington (American football) (1921–1992), American football player John Harrington (baseball) (born c. 1937), American business manager and baseball executive John Harrington (ice hockey) (born 1957), American ice hockey player John Herbert Harington (died 1828), British orientalist, colonial administrator and judge
See also Jack Harrington (disambiguation) John Herrington (disambiguation) Harrington (surname)