John O'Sullivan may refer to:

Sports

John O'Sullivan (cricketer) John O'Sullivan (11 May 1918 – 17 July 1991) was a New Zealand cricketer. He played three first-class matches for Otago between 1946 and 1948. See also * List of Otago representative cricketers This is a list of cricketers who have p ...

(1918–1991), New Zealand cricketer *

John O'Sullivan (cyclist) John Brendan O'Sullivan (14 March 1933 – 21 April 2023) was an Australian racing cyclist Cycle sport is competitive physical activity using bicycles. There are several categories of bicycle racing including road bicycle racing, c ...

(born 1933), Australian cyclist * John O'Sullivan (footballer) (born 1993), Irish footballer for Accrington Stanley *

John O'Sullivan (rugby league) John Charles O'Sullivan (11 August 1950 – 7 September 2018) was a New Zealand rugby league footballer who played in the team that represented New Zealand in the 1972 and 1975 World Cups. Early years O'Sullivan attended Rosmini College. Play ...

(1950–2018), New Zealand rugby league footballer * John O'Sullivan (rugby union) (born 1980), Irish rugby union footballer * John Lack O'Sullivan (1976–2002), Gaelic footballer and Australian rules footballer

Politics and government

* John O'Sullivan (Cork politician) (1901–1990), Irish Fine Gael Party politician, Senator, later TD for Cork South-West * John O'Sullivan (Illinois politician), member of the Illinois House of Representatives * John C. O'Sullivan (1841–?), politician in Ontario, Canada * John M. O'Sullivan (1881–1948), Irish Cumann na nGaedhael/Fine Gael politician, TD, cabinet minister and academic

Other

John O'Sullivan (columnist) John O'Sullivan, CBE (born 25 April 1942) is a British conservative political commentator and journalist. From 1987 to 1988, he was a senior policy writer and speechwriter in 10 Downing Street for Margaret Thatcher when she was British prime m ...

(born 1942), British conservative columnist and editor * John O'Sullivan (engineer), Australian astronomer and electrical engineer, and one of the inventors of Wi-Fi *Sir John O'Sullivan (soldier) (1700–1760), Irish soldier, Quartermaster general to Prince Charles Edward Stewart during the Jacobite Rising of 1745 * John Francis O'Sullivan (1850–1907), Irish-American awarded the Medal of Honor during the Indian Wars *

John L. O'Sullivan John Louis O'Sullivan (November 15, 1813 – March 24, 1895) was an American columnist, editor, and diplomat who used the term "manifest destiny" in 1845 to promote the annexation of Texas and the Oregon Country to the United States. O'Sullivan ...

(1813–1895), journalist who popularized the phrase "Manifest Destiny"