John or Jack Henry may refer to:
- John Henry (folklore), the folklore character and subject of eponymous ballad
People
Politicians
- John Henry, Margrave of Moravia (1322–1375)
- John Henry (Maryland politician) (1750–1798), U.S. senator from and governor of Maryland
- John Vernon Henry (1767–1829), American politician, New York State comptroller
- John Flournoy Henry (1793–1873), U.S. representative from Kentucky
- John Henry (representative) (1800–1882), U.S. representative from Illinois
- John Snowdon Henry (1824–1896), British politician from South-East Lancashire
- John Lane Henry (1831–1907), Justice of the Supreme Court of Texas
- John Henry (Australian politician) (1834–1912), Tasmanian House of Assembly member and Treasurer of Tasmania
- Prince Johannes Heinrich of Saxe-Coburg and Gotha (1931–2010), Hungarian prince
- John Henry (Ontario politician) (born 1960), Canadian politician, mayor of Oshawa, Ontario
- John Henry (Cook Islands politician), Cook Islander politician
Sportsmen
- John Henry (outfielder/pitcher) (1863–1939), American baseball outfielder/pitcher
- John Henry (catcher) (1889–1941), American baseball catcher
- Jack Henry (footballer, born 1921) (1921–2004), Australian rules footballer for Essendon
- Jack Henry (American football) (fl. 1990s), American football player and coach
- John Henry (footballer) (born 1971), Scottish footballer
- Jack Henry (footballer, born 1998), Australian rules footballer for Geelong
Other people
- John Henry (actor) (1738-1794), Irish and early American actor
- John Joseph Henry (1758–1811), American Revolutionary War soldier
- John Henry (spy) (c. 1776–1853), British spy
- Jack Henry (industrialist) (1917–2003), New Zealand industrialist
- Don Marion Davis (born 1917), American former child actor known as John Henry Jr.
- John Henry (judge) (born c.1933), New Zealand jurist
- John Henry (toxicologist) (1939–2007), English toxicologist
- John Raymond Henry (born 1943), American sculptor
- John W. Henry (born 1949), American businessman and owner of sports teams
- John Henry (born c. 1972), American vocalist in the band Darkest Hour
In art, media, and entertainment
Characters
- John Henry, a character/ stage name of the comedian Norman Clapham, popular in BBC radio in the 1920s
- John Henry, character in the 2006 comic series The Transformers: Evolutions
- John Henry, character in the Terminator: The Sarah Connor Chronicles science-fiction TV series
- John Henry Irons, character from the DC Comics, more commonly known as the superhero Steel
Film
- John Henry, a character in the 1963 film All the Way Home
- John Henry, a 2000 short film in the Disney's American Legends series
- John Henry (2020 film), a dramatic thriller film starring Terry Crews and Ludacris
Literature
- John Henry (novel), a 1931 novel by Roark Bradford
- John Henry, an American Legend (1971), a children's book by Ezra Jack Keats
- John Henry (picture book) (1994) a children's picture book by Julius Lester
Music
- John Henry (album), a 1994 album by They Might Be Giants
- "John Henry" or "John Henry Blues", a song recorded by DeFord Bailey
Stage productions
- John Henry (musical), a 1940 Broadway musical based on the 1931 novel
Other uses
- John Henry (horse) (1975–2007), American Thoroughbred race horse
- Jack Henry & Associates, an American information technology company
- John Henry, an American brand of clothing, originated by Henry Grethel, now owned by Perry Ellis International
See also
- John Henryism, a psychological term for a type of coping behaviours
- All pages with titles beginning with John Henry
- All pages with titles containing John Henry
- John Hemry