John Kearns (disambiguation)
John Kearns (born 1987) is an English comedian.
John Kearns may also refer to:
- John Kearns (politician) (1784–1864), Irish-Canadian politician
 - Jack Kearns (1882–1963), American boxer and boxing manager
 - John Kearns (footballer) (1883–1928), English footballer
 - Jack Kearns (footballer) (1914–1945), English footballer
 - John Kearns, English disc jockey, MTV presenter, and judge on Young Star Search