C. William O'Neill
| C. William O'Neill | |
|---|---|
| Chief Justice of the Ohio Supreme Court | |
| In office April 3, 1970 – August 20, 1978 | |
| Preceded by | Kingsley A. Taft | 
| Succeeded by | Robert E. Leach | 
| Associate Justice of the Ohio Supreme Court | |
| In office November 30, 1960 – April 4, 1970 | |
| Preceded by | John Weld Peck II | 
| Succeeded by | Leonard J. Stern | 
| 59th Governor of Ohio | |
| In office January 14, 1957 – January 12, 1959 | |
| Lieutenant | Paul M. Herbert | 
| Preceded by | John William Brown | 
| Succeeded by | Michael DiSalle | 
| 37th Ohio Attorney General | |
| In office January 8, 1951 – January 7, 1957 | |
| Governor | Frank Lausche John William Brown | 
| Preceded by | Herbert S. Duffy | 
| Succeeded by | William B. Saxbe | 
| 87th Speaker of the Ohio House of Representatives | |
| In office January 6, 1947 – January 2, 1949 | |
| Preceded by | Jackson E. Betts | 
| Succeeded by | John F. Cantwell | 
| Personal details | |
| Born | February 14, 1916 Marietta, Ohio, U.S. | 
| Died | August 20, 1978 (aged 62) Columbus, Ohio, U.S. | 
| Political party | Republican | 
| Spouse | Betty Hewson | 
| Alma mater | Marietta College (BA) Ohio State University (JD) | 
| Military service | |
| Allegiance | United States | 
| Branch/service | United States Army | 
| Years of service | 1943–1946 | 
| Battles/wars | World War II | 
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.