C. William O'Neill (February 14, 1916 – August 20, 1978) was an American judge and Republican politician, who served as the 59th governor of Ohio.

Biography

C. William O'Neill was born in Marietta, Ohio on February 14, 1916. He was the 59th Governor of Ohio. He graduated from both Marietta College (1938) and Ohio State University Moritz College of Law (1942). While at Marietta he joined The Delta Upsilon University.

O'Neill served as a state representative and as Speaker of the House. He was then elected the State Attorney General in 1950, being the youngest person elected to the office at age 34.