James O'Brien

James O'Brien may refer to:

Politicians

James O'Brien (died 1771), Irish nobleman and politician
James O'Brien (1806–1882), Irish judge and British MP for Limerick City
James O'Brien (Canadian politician) (1836–1903), Canadian senator
James O'Brien (New Brunswick politician) (1824–1922), Canadian blacksmith and political figure in New Brunswick
James O'Brien (New Zealand politician) (1874–1947), New Zealand politician
James O'Brien (U.S. Congressman) (1841–1907), United States Representative from New York
James Bronterre O'Brien (1805–1864), Irish-born Chartist leader, reformer and journalist
J. F. X. O'Brien (James Francis Xavier O'Brien, 1828–1905), Irish rebel and British MP
James H. O'Brien (1860–1924), United States Representative from New York
Jay O'Brien (Virginia politician) (born 1951), American politician in Virginia
James C. O'Brien, Assistant Secretary of State for European and Eurasian Affairs during the Biden administration
James William O'Brien (1879–1960), American farmer and politician

James O'Brien, 3rd Marquess of Thomond (1769–1855), British naval officer
James O'Brien (broadcaster) (born 1972), British journalist and presenter, primarily on LBC radio
James O'Brien (sprinter) (1925–1988), Canadian sprinter
James O'Brien (hurler) (born 1983), Irish hurler
James O'Brien (internet radio) (born 1973), Canadian internet radio journalist, founder and producer of RantMedia
James O'Brien (oceanographer) (1935–2016), American oceanographer
James O'Brien (piper) (1823–1885), Irish musician
James F. O'Brien, American computer graphics researcher
James O'Brien (filmmaker) (born 1969), American film director, screenwriter and producer
James Joseph O'Brien (1930–2007), British clergyman
James O'Brien (horticulturist) (1842–1930), winner of the Victoria Medal of Honour
James O'Brien (sprinter, born 1896), American sprinter and winner of the 300 yards at the 1921 USA Indoor Track and Field Championships
James O'Brien, Australian musician, bassist for The Boat People (active since 2000)
James J. O'Brien was one of many known aliases used by con artist George C. Parker (1860–1937)