John Harrington
John Harrington or John Harington may refer to:
Politicians
- John Harington, 1st Baron Harington
- John Harington, 2nd Baron Harington
- John Harington, 4th Baron Harington
- John Harington, MP for Rutland
- John Harington, MP for Pembroke Boroughs, Old Sarum and Caernarvon Boroughs; official of Henry VIII of England
- John Harrington , English politician
- John Harington, 1st Baron Harington of Exton, English politician
- John Harington, 2nd Baron Harington of Exton, English courtier
- John Harrington , English politician
- John Harrington , American politician and member of the Minnesota State Senate
Others
- John Harrington of Hornby, English knight
- John Harrington , Yorkist knight during the Wars of the Roses
- John Harington , English writer, of Kelston, inventor of the flushing toilet
- John Harrington , Medal of Honor recipient for the Indian Wars
- John L. Harrington, American bridge engineer
- John Peabody Harrington, American ethnologist
- John Harrington , American football player
- John Harrington , American business manager and baseball executive
- John Harrington , American ice hockey player
- John Herbert Harington, British orientalist, colonial administrator and judge