Former attorneys general are listed in reverse chronological order.
| Former Attorney General | Term of Service |
|---|---|
| Janet T. Mills | 2013 – 2019 |
| William Schneider | 2011 – 2013 |
| Janet T. Mills | 2009 – 2011 |
| G. Steven Rowe | 2001 – 2009 |
| Andrew Ketterer | 1995 – 2001 |
| Michael Carpenter | 1991 – 1995 |
| James E. Tierney | 1981 – 1991 |
| Richard S. Cohen | 1979 – 1981 |
| Joseph E. Brennan | 1975 – 1979 |
| Jon A. Lund | 1972 – 1975 |
| James S. Erwin | 1967 – 1971 |
| Richard J. Dubord | 1965 – 1966 |
| Frank E. Hancock | 1959 – 1964 |
| Frank F. Harding | 1955 – 1958 |
| Alexander A. LaFeur | 1951 – 1954 |
| Ralph W. Farris | 1945 – 1950 |
| Frank I. Cowan | 1941 – 1944 |
| Franz U. Burkett | 1937 – 1940 |
| Clyde R. Chapman | 1933 – 1936 |
| Clement F. Robinson | 1929 – 1932 |
| Raymond Fellows | 1925 – 1928 |
| Ransford W. Shaw | 1921 – 1924 |
| Guy H. Sturgis | 1917 – 1920 |
| William R. Pattangall | 1915 – 1916 |
| Scott Wilson | 1913 – 1914 |
| William R. Pattangall | 1911 – 1912 |
| Cyrus R. Tupper | 1911 |
| Warren C. Philbrook | 1909 – 1910 |
| Hannibal E. Hamlin | 1905 – 1908 |
| George M. Seiders | 1901 – 1904 |
| William T. Haines | 1897 – 1900 |
| Frederick A. Powers | 1893 – 1896 |
| Charles E. Littlefield | 1889 – 1892 |
| Orville D. Baker | 1885 – 1888 |
| Henry B. Cleaves | 1880 – 1884 |
| William H. McLellan | 1879 |
| Lucilius A. Emery | 1876 – 1878 |
| Harris M. Plaisted | 1873 – 1875 |
| Thomas B. Reed | 1870 – 1872 |
| William P. Frye | 1867 – 1869 |
| John A. Peters | 1864 – 1866 |
| Josiah H. Drummond | 1860 – 1863 |
| George W. Ingersoll | 1860 |
| Nathan D. Appleton | 1857 – 1859 |
| George Evans | 1856 |
| John S. Abbott | 1855 |
| George Evans | 1853 – 1854 |
| Henry Tallman | 1849 – 1852 |
| Samuel H. Blake | 1848 |
| Wyman B.S. Moor | 1844 – 1847 |
| Otis L. Bridges | 1839 – 1840 |
| Daniel Goodenow | 1838 |
| Nathan Clifford | 1834 – 1837 |
| Jonathan P. Rogers | 1832 – 1833 |
| Erastus Foote | 1820 – 1831 |
