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| Governors of Maryland |
Governor | Party | Term of Office |
| Thomas Johnson | None | 1777-1779 |
| Thomas Sim Lee | None | 1779-1782 |
| William Paca | None | 1782-1785 |
| William Smallwood | None | 1785-1788 |
| John Eager Howard | Federalist | 1788-1791 |
| George Plater | Federalist | 1791-1792 |
| James Brice | Unknown | 1792 |
| Thomas Sim Lee | Federalist | 1792-1794 |
| John Stone | Federalist | 1794-1797 |
| John Henry | Federalist | 1797-1798 |
| Benjamin Ogle | Federalist | 1798-1801 |
| John Francis Mercer | Democratic-Republican | 1801-1803 |
| Robert Bowie | Democratic-Republican | 1803-1806 |
| Robert Wright | Democratic-Republican | 1806-1809 |
| James Butcher | Unknown | 1809 |
| Edward Lloyd | Democratic-Republican | 1809-1811 |
| Robert Bowie | Democratic-Republican | 1811-1812 |
| Levin Winder | Federalist | 1812-1816 |
| Charles Ridgely | Federalist | 1816-1819 |
| Charles Goldsborough | Federalist | 1819 |
| Samuel Sprigg | Democratic-Republican | 1819-1822 |
| Samuel Stevens, Jr. | Democratic-Republican | 1822-1826 |
| Joseph Kent | Democrat | 1826-1829 |
| Danel Martin | Anti-Jackson | 1829-1830 |
| Thomas King Carroll | Democrat | 1830-1831 |
| Daniel Martin | Anti-Jackson | 1831 |
| George Howard | Anti-Jackson | 1831-1833 |
| James Thomas | Anti-Jackson | 1833-1836 |
| Thomas Veazey | Whig | 1836-1839 |
| William Grason | Democrat | 1839-1842 |
| Francis Thomas | Democrat | 1842-1845 |
| Thomas Pratt | Whig | 1845-1848 |
| Philip Francis Thomas | Democrat | 1848-1851 |
| Enoch Lowe | Democrat | 1851-1854 |
| Thomas Ligon | Democrat | 1854-1858 |
| Thomas Hicks | Know-Nothing | 1858-1862 |
| Augustus Bradford | Union | 1862-1866 |
| Thomas Swann | Democrat | 1866-1869 |
| Oden Bowie | Democrat | 1869-1872 |
| William Pickney Whyte | Democrat | 1872-1874 |
| James Black Groome | Democrat | 1874-1876 |
| John Lee Carroll | Democrat | 1876-1880 |
| William hamilton | Democrat | 1880-1884 |
| Robert McLane | Democrat | 1884-1885 |
| Henry Lloyd | Democrat | 1885-1888 |
| Elihu Jackson | Democrat | 1888-1892 |
| Frank Brown | Democrat | 1892-1896 |
| Lloyd Lowndes | Republican | 1896-1900 |
| John Walter Smith | Democrat | 1900-1904 |
| Edwin Warfield | Democrat | 1904-1908 |
| Austin Crothers | Democrat | 1908-1912 |
| Phillips Lee Goldsborough | Republican | 1912-1916 |
| Emerson Harrington | Democrat | 1916-1920 |
| Albert Ritchie | Democrat | 1920-1935 |
| Harry Nice | Republican | 1935-1939 |
| Herbert O'Conor | Democrat | 1939-1947 |
| William Preston Lane, Jr. | Democrat | 1947-1951 |
| Theodore McKeldin | Republican | 1951-1959 |
| J. Millard Tawes | Democrat | 1959-1967 |
| Spiro Agnew | Republican | 1967-1969 |
| Marvin Mandel | Democrat | 1969-1979 |
| Blair Lee III (Acting Governor) | Democrat | 1977-1979 |
| **Lt. Gov. Served as Acting Governor from June 4, 2025 to Jan. 15, 1979 |
| Harry Hughes | Democrat | 1979-1987 |
| William Schaefer | Democrat | 1987-1995 |
| Parris Glendening | Democrat | 1995-Present |
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