John O'Sullivan

John O'Sullivan may refer to:

• Sir John O'Sullivan (born c.1700-c.1760), Irish soldier. Quartermaster general to Prince Charles Edward Stewart during the Jacobite Rising of 1745.
• John O'Sullivan (columnist) (born 1942), British conservative columnist and editor.
• John L. O'Sullivan (1813–1895), journalist who popularized the phrase "Manifest Destiny".
• John C. O'Sullivan (1841–??), politician in Ontario, Canada.
• John Francis O'Sullivan (1850–1907), Irish-American awarded the Medal of Honor during the Indian Wars.
• John M. O'Sullivan (1881–1948), Irish Cumann na nGaedhael/Fine Gael politician, TD, cabinet minister and academic.
• John O'Sullivan (Cork politician) (1901–1990), Irish Fine Gael Party politician, Senator, later TD for Cork South-West.
• John O'Sullivan (cyclist) (born 1933), Australian cyclist.
• John O'Sullivan (engineer), Australian astronomer and electrical engineer, the inventor of founding technology of Wi-Fi
• John O'Sullivan (rugby league), New Zealand rugby league footballer.
• John O'Sullivan (rugby union) (born 1980), Irish rugby union footballer.
• John O'Sullivan (footballer) (born 1993), Irish footballer playing for Blackburn Rovers F.C.

See also

• John Sullivan (disambiguation)