John O'Neill may refer to:
Music
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John O'Neill (guitarist)
John Joseph O'Neill (born 26 August 1957) is a musician who is the rhythm guitarist and principal songwriter of the punk rock/ new wave band the Undertones. O'Neill, along with his younger brother Vincent and friends Feargal Sharkey, Michael B ...
(born 1957), Northern Irish guitarist of rock band The Undertones
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John O'Neill (musician, born 1926) (1926–1999), British singer, whistler, and trumpeter
Politics
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John O'Neill (Canadian politician) (1858–1922), Liberal politician in Ontario, Canada
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John O'Neill (congressman) (1822–1905), U.S. Representative from Ohio and state senator
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John O'Neill (Fenian) (1834–1878), member of the Irish Republican Brotherhood (Fenians)
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John O'Neill (Irish senator) (died 1941), Irish senator in 1925
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John O'Neill (philosopher), political philosopher, professor of political economy at the University of Manchester
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John O'Neill (political activist) (born 1946), fervent opponent of John Kerry and a leader of the groups Swift Vets and POWs for Truth
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John O'Neill (Wisconsin politician) (1830–?), Wisconsin state assemblyman
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John O'Neill, 1st Viscount O'Neill (1740–1798), Irish politician
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John O'Neill, 3rd Viscount O'Neill
John Bruce Richard O'Neill, 3rd Viscount O'Neill (30 December 1780 – 12 February 1855) was an Irish Tory politician who sat in the House of Commons from 1802 to 1841 and then in the House of Lords.
O'Neill was the son of John, Viscount O'Neill ...
(1780–1855), Irish Tory politician
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John A. O'Neill (died 1892), American steel engraver and mayor of Hoboken, New Jersey
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John J. O'Neill (American politician) (1846–1898), Missouri congressman
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John Joseph O'Neill (British politician) (1888–1953), Liberal Party politician in England, member of parliament for Lancaster 1923–1924
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John Raymond O'Neill (1891–1951), Conservative member of the Canadian House of Commons
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St John O'Neill (1741–1790) represented Randalstown in the Irish House of Commons
Sports
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John O'Neill (Australian rules footballer) (born 1935), Geelong player during the 1950s
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John O'Neill (baseball)
John J. O'Neill was a Major League player. He was born in New York City.
Little is known about this utility who played for the New York Giants in parts of two seasons. Used as a backup catcher for John Warner () and Frank Bowerman (), O'Neill ...
, baseball player
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John O'Neill (field hockey) (born 1968), American former field hockey player
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John O'Neill (footballer, born 1935) (1935–2012), Republic of Ireland and Preston North End player
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John O'Neill (footballer, born 1958)
John Patrick O'Neill (born 11 March 1958) is a former footballer who played for the Northern Ireland national team, winning 39 caps, and scoring two goals. Born in Derry, Northern Ireland, he was a member of the Northern Ireland squads that pl ...
, Northern Ireland player
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John O'Neill (footballer, born 1974), former Scottish football player with Queen of the South and former manager of Stirling Albion
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John O'Neill (rugby league) (1943–1999), Australian rugby league footballer and coach
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John O'Neill (rugby union, born 1973), Irish rugby union player
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John O'Neill (rugby union, born 1932), Australian rugby union player
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John O'Neill (Limerick hurler), from the
1994 All-Ireland Senior Hurling Championship final
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John O'Neill (Tipperary hurler) (born 1990), Irish hurler
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John O'Neill (runner), American steeplechase runner, 2nd at the
1925 USA Outdoor Track and Field Championships
Other
* John O'Neill, architect who oversaw the completion of
St Peter's Cathedral, Belfast
Saint Peter's Cathedral, Belfast (, ), is the Catholic cathedral church for the Diocese of Down and Connor, and is therefore the episcopal seat of the Catholic Bishop of Down and Connor. It is located in the Divis Street area of the Falls Road ...
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John O'Neill (businessman) (born 1951), CEO of the Australian Rugby Union and former head of Football Federation Australia
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John O'Neill (editor), founding editor of
''Black Gate'' (magazine)
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John O'Neill (lighthouse keeper) (1768–1838), American military officer and lighthouse keeper
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John O'Neill (poet) (1777–1854), Irish shoemaker poet and playwright
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John O'Neill (VC) (1897–1942), Scottish recipient of the Victoria Cross during the First World War
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John O'Neill (video game designer) (born 1948), experimental art video game designer
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John O'Neill, 3rd Earl of Tyrone (died 1641), the son of Hugh O'Neill
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John Johnston O'Neill
John Johnston O'Neill (November 12, 1886 – June 1, 1966) was a Canadian geologist and academic.
Born in Port Colborne, Ontario, the son of Thomas John O'Neill, an Irish immigrant, and Mary Jane Henderson, O'Neill received a Bachelor of Scie ...
(1886–1966), Canadian geologist and academic
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John Joseph O'Neill (journalist) (1889–1953), winner of the Pulitzer Prize for Reporting
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John P. O'Neill (1952–2001), former FBI agent and head of security at the World Trade Center at the time of the September 11, 2001 attacks
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John S. O'Neill (born 1979), British molecular biologist
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John Michael O'Neill, Canadian Roman Catholic bishop
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John O'Neill (sociologist), Canadian sociologist, phenomenologist, and social theorist
See also
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John O'Neal (disambiguation)
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John O'Neil (disambiguation)
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Jack O'Neill (disambiguation) Jack O'Neill is a fictional character in the ''Stargate'' film and television series .
Jack O'Neill or O'Neil may also refer to:
*Jack O'Neill (baseball) (1873–1935), Irish-American baseball player
*Jack O'Neill (businessman) (1923–2017), Ameri ...
{{hndis, Oneill, John