James or Jimmy O'Neill may refer to: James O'Neill (actor, born 1847) (1847–1920), father of the playwright Eugene O'Neill James O'Neill (actor, born 1863) (1863–1938), vaudeville and early film actor James E. O'Neill (1929–1987), American acting Archivist for the National Archives James O'Neill (baseball) (died 1993), winner of College World Series Most Outstanding Player award in 1952 James O'Neill (New Zealand politician) (1819–1882) James O'Neill (Washington politician) (1824–1913), American politician in Oregon and Washington states James O'Neill (priest) (died 1922), founder of the Knights of Saint Columbanus James O'Neill (jurist) (1847–1929), American jurist and politician James O'Neill (Wisconsin settler) (1810–1882), American settler, politician, and sawmill owner James Ryan O'Neill (born 1947), Australian serial killer Jimmy O'Neill (footballer, born 1931) (1931–2007), Irish international footballer James P. O'Neill (born 1950s), New York City police commissioner James R. O'Neill (1833–1863), American Civil War artist and correspondent Jamie O'Neill (born 1962), Irish author Tip O'Neill (baseball) (1860–1915), Canadian Baseball Hall of Fame inductee James Hugh O'Neill (1892–1972), American Catholic priest James E. O'Neill Jr. (1929–2002), Michigan politician