John Shannon
John Shannon may refer to:
- John Shannon (politician) (1862–1926), Australian politician
 - John Shannon (musician) (born 1980), American modern folk guitarist, vocalist, and composer
 - John Shannon (novelist) (born 1943), American author, lately of detective fiction
 - John Shannon (sportscaster) (born 1956), Canadian sportscaster & television producer
 - John W. Shannon (1933–2017), United States Under Secretary of the Army
 - John Shannon (defensive lineman) (born 1965), American football player
 - John Shannon (long snapper), American football player