Attorneys General of the State of Ohio: 1846 - present
The office of Attorney General was established as an elective office by the Constitution of 1851, and the term of office was two years. By an amendment adopted in 1954, the term of office is now four years.
| Name of Attorney General | Politics | County | Term of Office |
| Henry Stanberry | Rep. | Franklin | 1846-1851 |
| Joseph McCormick | Dem. | Adams | 1851-1852 |
| George E. Pugh | Dem. | Hamilton | 1852-1854 |
| George W. McCook | Dem. | Jefferson | 1854-1856 |
| Francis D. Kimball | Whig | Medina | 1856- |
| C.P. Wolcott | Rep. | Summit | 1856-1861 |
| James Murray | Rep. | Wood | 1861-1863 |
| Lyman R. Critchfield | Dem. | Holmes | 1863-1865 |
| William P. Richardson | Unionist | Washington | 1865- |
| Chauncey N. Olds | Rep. | Pickaway | 1865-1866 |
| William H. West | Rep. | Logan | 1866-1868 |
| Francis B. Pond | Rep. | Morgan | 1868-1872 |
| John Little | Rep. | Greene | 1872-1878 |
| Isiah Pillars | Dem. | Allen | 1878-1880 |
| George K. Nash | Rep. | Franklin | 1880-1883 |
| D.A. Hollingsworth | Rep. | Harrison | 1883-1884 |
| James Lawrence | Dem. | Cuyahoga | 1884-1886 |
| Jacob A. Kohler | Rep. | Summit | 1886-1888 |
| David K. Watson | Rep. | Franklin | 1888-1892 |
| John K. Richards | Rep. | Lawrence | 1892-1896 |
| Frank S. Monnett | Rep. | Crawford | 1896-1900 |
| John W. Sheets | Rep. | Putnam | 1900-1904 |
| Wade H. Ellis | Rep. | Hamilton | 1904-Nov. 1908 |
| Ulysses G. Denman | Rep. | Lucas | Nov. 1908-1911 |
| Timothy S. Hogan | Dem. | Jackson | 1911-1915 |
| Edward C. Turner | Rep. | Franklin | 1915-1917 |
| Joseph McGee | Dem. | Jackson | 1917-1919 |
| John G. Price | Rep. | Franklin | 1919-1923 |
| C. C. Crabbe | Rep. | Madison | 1923-1927 |
| Edward C. Turner | Rep. | Franklin | 1927-1929 |
| Gilbert Bettman | Rep. | Hamilton | 1929-1933 |
| John W. Bricker | Rep. | Franklin | 1933-1937 |
| Herbert S. Duffy | Dem. | Franklin | 1937-1939 |
| Thomas J. Herbert | Rep. | Cuyahoga | 1939-1945 |
| Hugh S. Jenkins | Rep. | Mahoning | 1945-1949 |
| Herbert S. Duffy | Dem. | Franklin | 1949-1951 |
| C. William O’Neill | Rep. | Washington | 1951-1957 |
| Wm. Saxbe | Rep. | Champaign | 1957-1959 |
| Mark McElroy | Dem. | Cuyahoga | 1959-1963 |
| William B. Saxbe | Rep. | Champaign | 1963-1969 |
| Paul W. Brown | Rep. | Franklin | 1969-1971 |
| William J. Brown | Dem. | Mahoning | 1971-1983 |
| Anthony J. Celebrezze Jr. | Dem. | Cuyahoga | 1983-1991 |
| Lee Fisher | Dem. | Cuyahoga | 1991-1995 |
| Betty Montgomery | Rep. | Wood | 1995-2003 |
| Jim Petro | Rep. | Cuyahoga | 2003-2007 |
| Marc Dann | Dem. | Mahoning | 2007-2008 |
| Nancy H. Rogers | | Franklin | 2008-2009 |
| Richard Cordray | Dem. | Franklin | 2009-2010 |
Mike DeWine
| Rep.
| Greene
| 2010-
|