| Succession | Governor | Party | In Office | |
|---|
| 66 | Martin O'Malley | Democratic | 1/17/2007 - Present | |
| 65 | Robert L. Ehrlich | Republican | 1/15/2003 - 1/17/2007 | |
| 64 | Parris N. Glendening | Democratic | 1/18/1995 - 1/15/2003 | |
| 63 | William Donald Schaefer | Democratic | 1/20/1987 - 1/18/1995 | |
| 62 | Harry R. Hughes | Democratic | 1/17/1979 - 1/20/1987 | |
| 61 | Blair Lee III | Democratic - acting governor | 6/4/1977 - 1/15/1979 | |
| 60 | Marvin Mandel | Democratic | 1/7/1969 - 1/17/1979 | |
| 59 | Spiro Agnew | Republican | 1/25/1967 - 1/7/1969 | |
| 58 | J. Millard Tawes | Democratic | 1/14/1959 - 1/25/1967 | |
| 57 | Theodore R. McKeldin | Republican | 1/10/1951 - 1/14/1959 | |
| 56 | William Preston Lane, Jr. | Democratic | 1/3/1947 - 1/10/1951 | |
| 55 | Herbert R. O'Conor | Democratic | 1/11/1939 - 1/3/1947 | |
| 54 | Harry W. Nice | Republican | 1/9/1935 - 1/11/1939 | |
| 53 | Albert C. Ritchie | Democratic | 1/14/1920 - 1/9/1935 | |
| 52 | Emerson C. Harrington | Democratic | 1/12/1916 - 1/14/1920 | |
| 51 | Phillips Lee Goldsborough | Republican | 1/10/1912 - 1/12/1916 | |
| 50 | Austin Lane Crothers | Democratic | 1/8/1908 - 1/10/1912 | |
| 49 | Edwin Warfield | Democratic | 1/13/1904 - 1/8/1908 | |
| 48 | John Walter Smith | Democratic | 1/10/1900 - 1/13/1904 | |
| 47 | Lloyd Lowndes, Jr. | Republican | 1/8/1896 - 1/10/1900 | |
| 46 | Frank Brown | Democratic | 1/13/1892 - 1/8/1896 | |
| 45 | Elihu Emory Jackson | Democratic | 1/11/1888 - 1/13/1892 | |
| 44 | Henry Lloyd | Democratic | 3/27/1885 - 1/11/1888 | |
| 43 | Robert Milligan McLane | Democratic | 1/9/1884 - 3/27/1885 | |
| 42 | William T. Hamilton | Democratic | 1/14/1880 - 1/9/1884 | |
| 41 | John Lee Carroll | Democratic | 1/12/1876 - 1/14/1880 | |
| 40 | James B. Groome | Democratic | 3/4/1874 - 1/12/1876 | |
| 39 | William Pinkney Whyte | Democratic | 1/10/1872 - 3/4/1874 | |
| 38 | Oden Bowie | Democratic | 1/13/1869 - 1/10/1872 | |
| 37 | Thomas Swann | Democratic | 1/10/1866 - 1/13/1869 | |
| 36 | Augustus Bradford | Unionist | 1/8/1862 - 1/10/1866 | |
| 35 | Thomas H. Hicks | American; later Republican | 1/13/1858 - 1/8/1862 | |
| 34 | Thomas W. Ligon | Democratic | 1/11/1854 - 1/13/1858 | |
| 33 | Enoch Louis Lowe | Democratic | 1/6/1851 - 1/11/1854 | |
| 32 | Philip F. Thomas | Democratic | 1/3/1848 - 1/6/1851 | |
| 31 | Thomas G. Pratt | Whig | 1/6/1845 - 1/3/1848 | |
| 30 | Francis Thomas | Democratic | 1/3/1842 - 1/6/1845 | |
| 29 | William Grason | Democratic | 1/7/1839 - 1/3/1842 | |
| 28 | Thomas W. Veazey | Whig | 1/14/1836 - 1/7/1839 | |
| 27 | James Thomaz | Whig | 1/17/1833 - 1/14/1836 | |
| 26 | George Howard | National Republican | 7/11/1831 - 1/17/1833 | |
| 25 | Daniel Martin | National Republican | 1/13/1831 - 7/11/1831 | |
| 24 | Thomas King Carroll | Democratic | 1/15/1830 - 1/13/1831 | |
| 23 | Daniel Martin | National Republican | 1/15/1829 - 1/15/1830 | |
| 22 | Joseph Kent | Democratic-Republican | 1/9/1826 - 1/15/1829 | |
| 21 | Samuel Stevens, Jr. | Democratic | 12/16/1822 - 1/9/1826 | |
| 20 | Samuel Sprigg | Democratic | 12/20/1819 - 12/16/1822 | |
| 19 | Charles Goldsborough | Federalist | 1/8/1819 - 12/20/1819 | |
| 18 | Charles Carnan Ridgely | Federalist | 1/2/1816 - 1/8/1819 | |
| 17 | Levin Winder | Federalist | 11/25/1812 - 1/2/1816 | |
| 16 | Robert Bowie | Democratic-Republican | 11/16/1811 - 11/25/1812 | |
| 15 | Edward Lloyd | Democratic-Republican | 6/9/1809 - 11/16/1811 | |
| 14 | Robert Wright | Democratic-Republican | 11/12/1806 - 6/9/1809 | |
| 13 | Robert Bowie | Democratic-Republican | 11/15/1803 - 11/10/1806 | |
| 12 | John Francis Mercer | Democratic-Republican | 11/10/1801 - 11/13/1803 | |
| 11 | Benjamin Ogle | Federalist | 11/14/1798 - 11/10/1801 | |
| 10 | John Henry | Democratic-Republican | 11/17/1797 - 11/14/1798 | |
| 9 | John Hoskins Stone | Federalist | 11/14/1794 - 11/17/1797 | |
| 8 | Thomas Sim Lee | Federalist | 4/5/1792 - 11/14/1794 | |
| 7 | James Brice | Federalist | 2/13/1792 - 4/5/1792 | |
| 6 | George Plater | No Party | 11/14/1791 - 2/13/1792 | |
| 5 | John Eager Howard | Federalist | 11/24/1788 - 11/14/1791 | |
| 4 | William Smallwood | No Party | 11/26/1785 - 11/24/1788 | |
| 3 | William Paca | No Party | 11/22/1782 - 11/26/1785 | |
| 2 | Thomas Sim Lee | Federalist | 11/12/1779 - 11/22/1782 | |
| 1 | Thomas Johnson | No Party | 3/21/1777 - 11/12/1779 | |