title: John O'Brien
text: # John O'Brien
  
  John O'Brien may refer to:
  
  ## Public officials
  
  ### American
  
  * John O'Brien (Ohio politician) (1932–1985), former member of the Ohio House of Representatives
  * John D. O'Brien, state senator in the 1997–1998 Massachusetts legislature
  * John F. O'Brien (secretary of state) (c. 1850–1927), Secretary of State of New York, 1903–1906
  * John F. O'Brien (judge) (1874–1939), New York Court of Appeals judge
  * John H. O'Brien, 4th Fire Commissioner of the City of New York
  * John J. O'Brien (civil servant) (1919–2001), investigated the assassination of President John F. Kennedy
  * John J. O'Brien (commissioner), former commissioner of the Massachusetts Probation Service
  * John P. O'Brien (1873–1951), 98th mayor of New York City
  * John L. O'Brien (1911–2007), American politician in the Washington House of Representatives
  
  ### Irish
  
  * John O'Brien (bishop) (died 1767), Irish Bishop of Cork and Cloyne
  * John O'Brien (Irish politician) (1794–1855), MP for Limerick City in the UK Parliament 1841–1852
  * John O'Brien (priest) (1931–2008), Irish Roman Catholic priest and musician
  * John Thomond O'Brien (1786–1861), Irish soldier in the Argentine War of Independence
  
  ### British
  
  * John O'Brien (British politician) (died 1982), far right figure, onetime leader of the British National Front
  * Sir Terence O'Brien (colonial administrator) (John Terence Nicholls O'Brien, 1830–1904), British surveyor, engineer and colonial governor
  
  ### Canadian
  
  * John O'Brien (admiral) (1918–1996), commander of the Royal Canadian Navy
  * John O'Brien (Canadian politician) (1847–1917), merchant and member of the Legislative Assembly of New Brunswick
  
  ### New Zealand
  
  * John O'Brien (New Zealand politician) (1925–1990), New Zealand political candidate and party leader
  
  ### Australian
  
  * John O'Brien (Australian politician) (1866–1932), Member of the Queensland Legislative Assembly
  * John O'Brien (Australian Army officer) (1908–1980), Australian major general and Mayor of Woollahra
  
  ## Sportspeople
  
  ### Baseball
  
  * John O'Brien (outfielder) (1851–1914), baseball outfielder
  * John O'Brien (second baseman) (1866–1913), baseball infielder
  * Johnny O'Brien (born 1930), 1950's baseball second baseman
  * Cinders O'Brien (John F. O'Brien, 1867–1892), baseball pitcher
  
  ### Footballers
  
  * John O'Brien (Dublin footballer), senior inter-county Gaelic footballer for Dublin and Round Towers, Clondalkin
  * John O'Brien (Louth footballer) (born 1985), Gaelic footballer for Louth
  * John O'Brien (soccer) (born 1977), American soccer player
  * Jon O'Brien (born 1961), English footballer
  
  ### Other sports
  
  * John O'Brien (basketball, born 1888) (1888–1967), American basketball referee and executive
  * John O'Brien (basketball, born 1916) (1916–1994), American professional basketball player in the 1940s
  * John O'Brien (boxer) (1937–1979), Scottish boxer of the 1960s and '70s
  * John O'Brien (cricketer, born 1961), English cricketer
  * John O'Brien (Irish cricketer) (1866–1920), Irish cricketer
  * John O'Brien (hurler) (born 1982), Irish hurler
  * John O'Brien (rower) (1927–1995), New Zealand representative rower
  * John O'Brien (tennis) (born 1932), Australian tennis player and hostage in the 2014 Sydney hostage crisis
  * John O'Brien (water polo) (1931–2020), Australian Olympic water polo player
  * John Ambrose O'Brien (1885–1968), founding owner of the Montreal Canadiens ice hockey team
  * John O'Brien (businessman), British businessman
  
  ## Other people
  
  * John O'Brien (marine artist) (1831–1891), Canadian marine artist
  * John O'Brien, the original name of stage actor John T. Raymond (1836–1887)
  * John O'Brien (poet) (1878–1952), Australian priest, poet and author
  * John B. O'Brien (1884–1936), American actor and director
  * John O'Brien (publisher), Irish American publisher and academic
  * John O'Brien (novelist) (1960–1994), American author
  * John O'Brien (filmmaker) (born 1962), Vermont film director
  * John O'Brien (advocate), disability inclusion advocate and writer
  * John O'Brien (screenwriter), screenwriter of Fireflies and K-9
  * John Roger O'Brien (1903–1982), birth name of Jack O'Brien (jazz pianist)
  