James O'Connor or O'Conner may refer to:

Politics and law James O'Connor (Louisiana politician) (1870–1941), U.S Representative from Louisiana James F. O'Connor (1878–1945), U.S Representative from Montana James Francis Thaddeus O'Connor (1886–1949), U.S. federal judge James O'Connor (Cork politician) (born 1997), Irish Fianna Fáil politician for Cork East James O'Connor (Wicklow politician) (1836–1910), MP for the constituency of West Wicklow 1892–1910 James O'Connor (Irish judge) (1872–1931), Attorney General for Ireland James L. O'Connor (1858–1931), Wisconsin Attorney General James O'Connor (Arizona politician) (born 1946), American politician James K. O'Connor (1864–?), American politician

Sports James O'Connor (footballer, born 1979), former Irish soccer player, former head coach of Orlando City SC James O'Connor (footballer, born 1984), English football player for Kidderminster Harriers James O'Connor (rugby union) (born 1990), Australian rugby union player Jamesie O'Connor (born 1972), Irish hurler James O'Connor (hurler), Irish hurling manager and former player

Other James Arthur O'Connor (1792–1841), Irish painter James O'Connor (bishop) (1823–1890), Irish-American Roman Catholic bishop of Omaha James F. O'Conner (1861–1940), United States Navy sailor and Medal of Honor recipient James O'Connor (academic) (1930–2017), American sociologist and economist James O'Connor (drummer), American drummer with the band Godhead James P. O'Connor, Irish entomologist

See also Jimmy O'Connor, Irish footballer Jimmy O'Connor (author) (1918–2001), journalist and television dramatist Connor (disambiguation)