Michael O'Neill may refer to: Michael O'Neill (diplomat) (born 1967), British diplomat Michael O'Neill (academic) (1953–2018), English poet and academic Michael O'Neill (actor) (born 1951), American actor Michael O'Neill (educator), pioneer in non-profit management education Michael O'Neill (footballer) (born 1969), Northern Irish football player and manager Michael O'Neill (politician) (1909–1976), Irish politician Michael E. O'Neill (born 1946), chairman of Citigroup Mike O'Neill (basketball) (born 1928), American basketball player Mike O'Neill (baseball) (1877–1959), Irish-born American starting pitcher and left fielder in Major League Baseball Mike O'Neill (ice hockey) (born 1967), Canadian professional ice hockey goaltender Mike O'Neill (lacrosse), three-time All-American lacrosse player Mike O'Neill (musician) (born 1970), Canadian singer-songwriter Mike O'Neill (rugby league) (born 1960), English rugby league footballer of the 1970s, 1980s and 1990s Mike O'Neill, winner of a 2006 Costume Designers Guild Award Michael O'Neill, founder of the Informed Medical Options Party, a minor political party in Australia Mikey O'Neill (footballer) (born 2004), English footballer See also Michael O'Neal (born 1951), American lawyer and Republican politician Mickey O'Neil (1900–1964), American professional baseball Mickey O'Neil, fictional character from the 2000 film Snatch