Edward O'Neill, O'Neil or O'Neal may refer to:
Politicians Edward O'Neill, 2nd Baron O'Neill (1839–1928), Irish peer and Conservative politician Edward O'Neill (Wisconsin politician) (1820–1890), mayor of Milwaukee, Wisconsin Edward J. O'Neill (Rhode Island politician), Rhode Island state senator Edward L. O'Neill (1903–1948), American politician in New Jersey
Sportsmen Ed O'Neil (Edward William O'Neil, born 1952), former American football coach and NFL linebacker Ed O'Neil (baseball) (Edward J. O'Neil, 1859–1892), Major League Baseball pitcher
Military Edward A. O'Neal (1818–1890), Confederate general during the American Civil War Edward J. O'Neill (general) (1902–1979), U.S. military officer during World War II
Others Ed O'Neill (born 1946), American actor and comedian Ed O'Neal, American gospel singer Edward O'Neill (actor) (1862–1938), British actor Edward Frances O'Neill (1890–1975), known as Teddy O'Neill, English teacher
See also O'Neill (disambiguation)