| Member | Years | Party | District | Electoral history |
|---|
| William Albert | March 4, 1873 –
March 3, 1875 | Republican | 5th | [data missing] |
| William N. Andrews | March 4, 1919 –
March 3, 1921 | Republican | 1st | [data missing] |
| John Archer | March 4, 1811 –
March 3, 1817 | Democratic-Republican | 6th | [data missing] |
| Stevenson Archer | October 26, 1811 –
March 3, 1817 | Democratic-Republican | 6th | [data missing] |
March 4, 1819 –
March 3, 1821 | 7th | [data missing] |
| Stevenson Archer | March 4, 1867 –
March 3, 1875 | Democratic | 2nd | [data missing] |
| George Baer Jr. | March 4, 1797 –
March 3, 1801 | Federalist | 4th | [data missing] |
March 4, 1815 –
March 3, 1817 | [data missing] |
| William B. Baker | March 4, 1895 –
March 3, 1901 | Republican | 1st | [data missing] |
| Harry S. Baldwin | January 3, 1943 –
January 3, 1947 | Democratic | 2nd | [data missing] |
| Isaac A. Barber | March 4, 1897 –
March 3, 1899 | Republican | 1st | [data missing] |
| Michael D. Barnes | January 3, 1979 –
January 3, 1987 | Democratic | 8th | [data missing] |
| John Barney | March 4, 1825 –
March 3, 1829 | Anti-Jacksonian | 5th | [data missing] |
| Roscoe Bartlett | January 3, 1993 –
January 3, 2013 | Republican | 6th | [data missing] |
| Robert Bauman | August 21, 1973 –
January 3, 1981 | Republican | 1st | [data missing] |
| Thomas Bayly | March 4, 1817 –
March 3, 1823 | Federalist | 8th | [data missing] |
| James G. Beall | January 3, 1943 –
January 3, 1953 | Republican | 6th | [data missing] |
| John G. Beall Jr. | January 3, 1969 –
January 3, 1971 | Republican | 6th | [data missing] |
| Carville Benson | November 5, 1918 –
March 3, 1921 | Democratic | 2nd | [data missing] |
| Helen D. Bentley | January 3, 1985 –
January 3, 1995 | Republican | 2nd | [data missing] |
| Albert Blakeney | March 4, 1901 –
March 3, 1903 | Republican | 2nd | [data missing] |
March 4, 1921 –
March 3, 1923 | [data missing] |
| William P. Bolton | January 3, 1949 –
January 3, 1951 | Democratic | 2nd | [data missing] |
| William Samuel Booze | March 4, 1897 –
March 3, 1899 | Republican | 3rd | [data missing] |
| Richard Bowie | March 4, 1849 –
March 3, 1853 | Whig | 1st | [data missing] |
| Thomas F. Bowie | March 4, 1855 –
March 3, 1859 | Democratic | 6th | [data missing] |
| Walter Bowie | March 24, 1802 –
March 3, 1805 | Democratic-Republican | 2nd | [data missing] |
| Robert F. Brattan | March 4, 1893 –
May 10, 1894 | Democratic | 1st | [data missing] |
| Francis Brengle | March 4, 1843 –
March 3, 1845 | Whig | 2nd | [data missing] |
| Daniel Brewster | January 3, 1959 –
January 3, 1963 | Democratic | 2nd | [data missing] |
| Anthony Brown | January 3, 2017 –
January 3, 2023 | Democratic | 4th | First elected in 2016.
Retired torun for attorney general of Maryland. |
| Elias Brown | March 4, 1829 –
March 3, 1831 | Jacksonian | 5th | [data missing] |
| John Brown | March 4, 1809 –
????, 1810 | Democratic-Republican | 7th | Resigned after appointment as Clerk of Court of Queen Anne's County. |
| John B. Brown | November 8, 1892 –
March 4, 1893 | Democratic | 1st | [data missing] |
| Beverly Byron | January 3, 1979 –
January 3, 1993 | Democratic | 6th | [data missing] |
| Goodloe Byron | January 3, 1971 –
October 11, 1978 | Democratic | 6th | Died. |
| Katharine Byron | May 27, 1941 –
January 3, 1943 | Democratic | 6th | [data missing] |
| William D. Byron | January 3, 1939 –
February 27, 1941 | Democratic | 6th | Died. |
| Charles B. Calvert | March 4, 1861 –
March 3, 1863 | Union | 6th | [data missing] |
| John Campbell | March 4, 1801 –
March 3, 1811 | Federalist | 1st | [data missing] |
| Ben Cardin | January 3, 1987 –
January 3, 2007 | Democratic | 3rd | [data missing] |
| Richard B. Carmichael | March 4, 1833 –
March 3, 1835 | Jacksonian | 2nd | [data missing] |
| Daniel Carroll | March 4, 1789 –
March 3, 1791 | Pro-Administration | 6th | [data missing] |
| James Carroll | March 4, 1839 –
March 3, 1841 | Democratic | 4th | [data missing] |
| John Causin | March 4, 1843 –
March 3, 1845 | Whig | 1st | [data missing] |
| Andrew G. Chapman | March 4, 1881 –
March 3, 1883 | Democratic | 5th | [data missing] |
| John G. Chapman | March 4, 1845 –
March 3, 1849 | Whig | 1st | [data missing] |
| Gabriel Christie | March 4, 1793 –
March 3, 1795 | Anti-Administration | 6th | [data missing] |
March 4, 1795 –
March 3, 1797 | Democratic-Republican |
March 4, 1799 –
March 3, 1801 | [data missing] |
| Linwood Clark | March 4, 1929 –
March 3, 1931 | Republican | 2nd | [data missing] |
| Charles P. Coady | November 4, 1913 –
March 3, 1921 | Democratic | 3rd | [data missing] |
| Charles E. Coffin | November 6, 1894 –
March 3, 1897 | Republican | 5th | [data missing] |
| William H. Cole | March 4, 1885 –
July 8, 1886 | Democratic | 3rd | Died. |
| William P. Cole Jr. | March 4, 1927 –
March 3, 1929 | Democratic | 2nd | [data missing] |
March 4, 1931 –
October 26, 1942 | Resigned to become judge of US Customs Court |
| Barnes Compton | March 4, 1885 –
March 20, 1890 | Democratic | 5th | Lost contested election |
March 4, 1891 –
May 15, 1894 | Resigned. |
| Albert Constable | March 4, 1845 –
March 3, 1847 | Democratic | 5th | [data missing] |
| Benjamin Contee | March 4, 1789 –
March 3, 1791 | Anti-Administration | 3rd | [data missing] |
| Jeremiah Cosden | March 4, 1821 –
March 19, 1822 | Democratic-Republican | 6th | Lost contested election |
| Joseph S. Cottman | March 4, 1851 –
March 3, 1853 | Independent Whig | 6th | [data missing] |
| George W. Covington | March 4, 1881 –
March 3, 1885 | Democratic | 1st | [data missing] |
| J. Harry Covington | March 4, 1909 –
September 30, 1914 | Democratic | 1st | Resigned. |
| Leonard Covington | March 4, 1805 –
March 3, 1807 | Democratic-Republican | 2nd | [data missing] |
| John K. Cowen | March 4, 1895 –
March 3, 1897 | Democratic | 4th | [data missing] |
| Jeremiah Crabb | March 4, 1795 –
June 1, 1796 | Federalist | 3rd | Resigned. |
| William Craik | December 5, 1796 –
March 3, 1801 | Federalist | 3rd | Resigned. |
| John Creswell | March 4, 1863 –
March 3, 1865 | Republican | 1st | [data missing] |
| John W. Crisfield | March 4, 1861 –
March 3, 1849 | Whig | 6th | [data missing] |
March 4, 1861 –
March 3, 1863 | Union | 1st | [data missing] |
| Thomas Culbreth | March 4, 1817 –
March 3, 1821 | Democratic-Republican | 6th | [data missing] |
| Elijah Cummings | April 16, 1996 –
October 17, 2019 | Democratic | 7th | First elected in 1996 to finish Kweisi Mfume's term.
Died. |
| Thomas D'Alesandro Jr. | January 3, 1939 –
May 16, 1947 | Democratic | 3rd | Resigned to becomeMayor of Baltimore. |
| Henry W. Davis | March 4, 1855 –
March 3, 1861 | Know Nothing | 4th | [data missing] |
March 4, 1863 –
March 3, 1865 | Unconditional Union | 1st | [data missing] |
| John Delaney | January 3, 2013 –
January 3, 2019 | Democratic | 6th | [data missing] |
| John Dennis | March 4, 1797 –
March 3, 1805 | Federalist | 8th | [data missing] |
| John Dennis | March 4, 1837 –
March 3, 1841 | Whig | 1st | [data missing] |
| Littleton Dennis | March 4, 1833 –
April 14, 1834 | Anti-Jacksonian | 1st | Died. |
| James W. Denny | March 4, 1899 –
March 3, 1901 | Democratic | 4th | [data missing] |
March 4, 1903 –
March 3, 1905 | [data missing] |
| George Dent | March 4, 1793 –
March 3, 1795 | Pro-Administration | 1st | First elected in 1792.
Retired. |
March 4, 1795 –
March 3, 1801 | Federalist |
| James Devereux | January 3, 1951 –
January 3, 1959 | Republican | 2nd | [data missing] |
| Clement Dorsey | March 4, 1825 –
March 3, 1829 | Anti-Jacksonian | 1st | [data missing] |
March 4, 1829 –
March 3, 1831 | Anti-Jacksonian |
| Gabriel Duvall | November 11, 1794 –
March 3, 1795 | Anti-Administration | 2nd | [data missing]
Resigned to become Chief Justice of General Court of Maryland. |
March 4, 1795 –
March 28, 1796 | Democratic-Republican |
| Roy Dyson | January 3, 1981 –
January 3, 1991 | Democratic | 1st | [data missing] |
| Benjamin Edwards | January 2, 1795 –
March 3, 1795 | Pro-Administration | 3rd | [data missing] |
| Donna Edwards | June 17, 2008 –
January 3, 2017 | Democratic | 4th | [data missing] |
| Bob Ehrlich | January 3, 1995 –
January 3, 2003 | Republican | 2nd | [data missing] |
| Sarah Elfreth | January 3, 2025 –
present | Democratic | 3rd | First elected in 2024.
Incumbent. |
| Daniel Ellison | January 3, 1943 –
January 3, 1945 | Republican | 4th | [data missing] |
| Alexander Evans | March 4, 1847 –
March 3, 1853 | Whig | 5th | [data missing] |
| George H. Fallon | January 3, 1945 –
January 3, 1971 | Democratic | 4th | [data missing] |
| John Van Lear Findlay | March 4, 1883 –
March 3, 1887 | Democratic | 4th | [data missing] |
| John R. Foley | January 3, 1959 –
January 3, 1961 | Democratic | 6th | [data missing] |
| Uriah Forrest | March 4, 1793 –
November 8, 1794 | Pro-Administration | 3rd | [data missing] |
| John R. Franklin | March 4, 1853 –
March 3, 1855 | Democratic | 1st | [data missing] |
| Samuel Friedel | January 3, 1953 –
January 3, 1971 | Democratic | 7th | [data missing] |
| George Gale | March 4, 1789 –
March 3, 1791 | Pro-Administration | 5th | [data missing] |
| Levin Gale | March 4, 1827 –
March 3, 1829 | Jacksonian | 6th | [data missing] |
| Edward Garmatz | July 15, 1947 –
January 3, 1973 | Democratic | 3rd | [data missing] |
| Charles H. Gibson | March 4, 1885 –
March 3, 1891 | Democratic | 1st | [data missing] |
| Wayne Gilchrest | January 3, 1991 –
January 3, 2009 | Republican | 1st | [data missing] |
| John Gill Jr. | March 4, 1905 –
March 3, 1911 | Democratic | 4th | [data missing] |
| John K. Cowen | March 4, 1895 –
March 3, 1897 | Democratic | 4th | [data missing] |
| Stephen W. Gambrill | November 4, 1924 –
December 19, 1938 | Democratic | 5th | Died. |
| Charles Goldsborough | March 4, 1805 –
March 3, 1817 | Federalist | 8th | [data missing] |
| Thomas A. Goldsborough | March 4, 1921 –
April 5, 1939 | Democratic | 1st | Resigned having been appointed an associate justice of theDistrict Court of the United States for the District of Columbia. |
| Gilbert Gude | January 3, 1967 –
January 3, 1977 | Republican | 8th | [data missing] |
| Samuel Hambleton | March 4, 1869 –
March 3, 1873 | Democratic | 1st | [data missing] |
| William T. Hamilton | March 4, 1849 –
March 3, 1853 | Democratic | 2nd | [data missing] |
March 4, 1853 –
March 3, 1855 | 4th |
| Patrick Hamill | March 4, 1869 –
March 3, 1871 | Democratic | 4th | [data missing] |
| Edward Hammond | March 4, 1849 –
March 3, 1853 | Democratic | 3rd | [data missing] |
| Alexander Hanson | March 4, 1813 –
????, 1816 | Federalist | 3rd | Resigned. |
| Andrew P. Harris | January 3, 2011 –
present | Republican | 1st | First elected in 2010.
Incumbent. |
| Benjamin G. Harris | March 4, 1863 –
March 3, 1867 | Democratic | 5th | [data missing] |
| James M. Harris | March 4, 1855 –
March 3, 1861 | Know Nothing | 3rd | [data missing] |
| William Hayward Jr. | March 4, 1823 –
March 3, 1825 | Democratic-Republican[a] | 7th | [data missing] |
| James P. Heath | March 4, 1833 –
March 3, 1835 | Jacksonian | 4th | [data missing] |
| Eli J. Henkle | March 4, 1875 –
March 3, 1881 | Democratic | 5th | [data missing] |
| John C. Herbert | March 4, 1815 –
March 3, 1819 | Federalist | 2nd | [data missing] |
| Daniel M. Henry | March 4, 1877 –
March 3, 1881 | Democratic | 1st | [data missing] |
| Winder L. Henry | November 6, 1894 –
March 3, 1895 | Democratic | 1st | [data missing] |
| Daniel Hiester | March 4, 1801 –
March 7, 1804 | Democratic-Republican | 4th | Died. |
| John Hill | March 4, 1921 –
March 3, 1927 | Republican | 3rd | [data missing] |
| Solomon Hillen Jr. | March 4, 1839 –
March 3, 1841 | Democratic | 4th | [data missing] |
| William Hindman | January 30, 1793 –
March 3, 1793 | Pro-Administration | 2nd | [data missing] |
March 4, 1793 –
March 3, 1795 | 7th |
March 4, 1795 –
March 3, 1799 | Federalist |
| Fetter S. Hoblitzell | March 4, 1881 –
March 3, 1885 | Democratic | 3rd | [data missing] |
| Henry W. Hoffman | March 4, 1855 –
March 3, 1857 | Know Nothing | 5th | [data missing] |
| Lawrence Hogan | January 3, 1969 –
January 3, 1975 | Republican | 5th | [data missing] |
| Marjorie Holt | January 3, 1973 –
January 3, 1987 | Republican | 4th | [data missing] |
| Hart B. Holton | March 4, 1929 –
March 3, 1931 | Republican | 5th | [data missing] |
| Benjamin C. Howard | March 4, 1829 –
March 3, 1833 | Jacksonian | 5th | [data missing] |
March 4, 1835 –
March 3, 1837 | 4th | [data missing] |
March 4, 1837 –
March 3, 1839 | Democratic |
| Steny Hoyer | May 19, 1981 –
present | Democratic | 5th | First elected in 1981 to finish Gladys Spellman's term.
Incumbent. |
| George W. Hughes | March 4, 1859 –
March 3, 1861 | Democratic | 6th | [data missing] |
| DeWitt Hyde | January 3, 1953 –
January 3, 1959 | Republican | 6th | [data missing] |
| Glenn Ivey | January 3, 2023 –
present | Democratic | 4th | First elected in 2022.
Incumbent. |
| William H. Jackson | March 4, 1901 –
March 3, 1905 | Republican | 1st | [data missing] |
March 4, 1907 –
March 3, 1909 | [data missing] |
| Daniel Jenifer | March 4, 1831 –
March 3, 1833 | Anti-Jacksonian | 1st | [data missing] |
March 4, 1835 –
March 3, 1837 | 7th | [data missing] |
March 4, 1837 –
March 3, 1841 | Whig | [data missing] |
| Thomas F. Johnson | January 3, 1959 –
January 3, 1963 | Democratic | 1st | [data missing] |
| William C. Johnson | March 4, 1833 –
March 3, 1835 | Anti-Jacksonian | 6th | [data missing] |
March 4, 1837 –
March 3, 1843 | Whig | 5th | [data missing] |
| Isaac D. Jones | March 4, 1841 –
March 3, 1843 | Whig | 1st | [data missing] |
| Ambrose J. Kennedy | November 8, 1932 –
January 3, 1941 | Democratic | 4th | [data missing] |
| John P. Kennedy | April 25, 1838 –
March 3, 1839 | Whig | 4th | [data missing] |
March 4, 1841 –
March 3, 1845 | [data missing] |
| Joseph Kent | March 4, 1811 –
March 3, 1815 | Democratic-Republican[b] | 2nd | [data missing] |
March 4, 1819 –
March 3, 1825 | [data missing] |
March 4, 1825 –
January 6, 1826 | Anti-Jacksonian | Resigned after being electedGovernor of Maryland. |
| John B. Kerr | March 4, 1849 –
March 3, 1851 | Whig | 6th | [data missing] |
| John Leeds Kerr | March 4, 1825 –
March 3, 1829 | Anti-Jacksonian | 7th | [data missing] |
March 4, 1831 –
March 3, 1833 | Anti-Jacksonian | [data missing] |
| Josiah Kerr | November 6, 1900 –
March 3, 1901 | Republican | 1st | [data missing] |
| Philip Key | March 4, 1791 –
March 3, 1793 | Democratic-Republican | 1st | Elected in 1790.
Lost re-election. |
| Philip Barton Key | March 4, 1807 –
March 3, 1813 | Federalist | 3rd | [data missing] |
| William Kimmel | March 4, 1877 –
March 3, 1881 | Democratic | 3rd | [data missing] |
| George Konig | March 4, 1911 –
May 31, 1913 | Democratic | 3rd | [data missing] |
| Frank Kratovil | January 3, 2009 –
January 3, 2011 | Democratic | 1st | [data missing] |
| John Kronmiller | March 4, 1909 –
March 3, 1911 | Republican | 3rd | [data missing] |
| Jacob M. Kunkel | March 4, 1857 –
March 3, 1861 | Democratic | 5th | [data missing] |
| Richard Lankford | January 3, 1955 –
January 3, 1965 | Democratic | 5th | [data missing] |
| Cornelius Leary | March 4, 1861 –
March 3, 1863 | Union | 3rd | [data missing] |
| John Lee | March 4, 1823 –
March 3, 1825 | Federalist[c] | 4th | [data missing] |
| David J. Lewis | March 4, 1911 –
March 3, 1917 | Democratic | 6th | [data missing] |
March 4, 1931 –
January 3, 1939 | [data missing] |
| Thomas W. Ligon | March 4, 1845 –
March 3, 1849 | Democratic | 3rd | [data missing] |
| John C. Linthicum | March 4, 1911 –
October 5, 1932 | Democratic | 4th | Died. |
| Peter Little | March 4, 1811 –
March 3, 1813 | Democratic-Republican[c] | 5th | [data missing] |
September 2, 1816 –
March 3, 1825 | [data missing] |
March 4, 1825 –
March 3, 1829 | Anti-Jacksonian |
| Edward Lloyd | December 3, 1806 –
March 3, 1809 | Democratic-Republican | 7th | [data missing] |
| Clarence Long | January 3, 1963 –
January 3, 1985 | Democratic | 2nd | [data missing] |
| Edward H. C. Long | March 4, 1845 –
March 3, 1847 | Whig | 6th | [data missing] |
| Lloyd Lowndes Jr. | March 4, 1873 –
March 3, 1875 | Republican | 6th | [data missing] |
| Hervey Machen | January 3, 1965 –
January 3, 1969 | Democratic | 5th | [data missing] |
| Patrick Magruder | March 4, 1805 –
March 3, 1807 | Democratic-Republican | 3rd | [data missing] |
| Robert N. Martin | March 4, 1825 –
March 3, 1827 | Anti-Jacksonian | 8th | [data missing] |
| John T. Mason Jr. | March 4, 1841 –
March 3, 1843 | Democratic | 6th | [data missing] |
| Charles Mathias | January 3, 1961 –
January 3, 1969 | Republican | 6th | [data missing] |
| William Matthews | March 4, 1797 –
March 3, 1799 | Federalist | 6th | [data missing] |
| Henry May | March 4, 1853 –
March 3, 1855 | Democratic | 5th | [data missing] |
March 4, 1861 –
March 3, 1863 | Union | 4th | [data missing] |
| April McClain Delaney | January 3, 2025 –
present | Democratic | 6th | First elected in 2024.
Incumbent. |
| Louis E. McComas | March 4, 1883 –
March 3, 1891 | Republican | 6th | [data missing] |
| William McCreery | March 4, 1803 –
March 3, 1809 | Democratic-Republican | 5th | [data missing] |
| Hiram McCullough | March 4, 1865 –
March 3, 1869 | Democratic | 1st | [data missing] |
| John McDonald | March 4, 1897 –
March 3, 1899 | Republican | 6th | [data missing] |
| William W. McIntire | March 4, 1897 –
March 3, 1899 | Republican | 4th | [data missing] |
| William M. McKaig | March 4, 1891 –
March 3, 1895 | Democratic | 6th | [data missing] |
| Alexander McKim | March 4, 1809 –
March 3, 1815 | Democratic-Republican[c] | 5th | [data missing] |
| Isaac McKim | January 4, 1823 –
March 3, 1825 | Democratic-Republican | 5th | [data missing] |
March 4, 1833 –
March 3, 1835 | Jacksonian | [data missing]
Died. |
March 4, 1835 –
April 1, 1838 | 4th |
| Robert M. McLane | March 4, 1847 –
March 3, 1851 | Democratic | 4th | [data missing] |
March 4, 1879 –
March 3, 1883 | [data missing] |
| Charles T. McMillen | January 3, 1987 –
January 3, 1993 | Democratic | 4th | [data missing] |
| Hugh Meade | January 3, 1947 –
January 3, 1949 | Democratic | 2nd | [data missing] |
| John F. Mercer | February 5, 1792 –
March 3, 1793 | Anti-Administration | 3rd | [data missing] |
March 4, 1793 –
April 13, 1794 | 2nd |
| William M. Merrick | March 4, 1871 –
March 3, 1873 | Democratic | 5th | [data missing] |
| John A. Meyer | January 3, 1941 –
January 3, 1943 | Democratic | 4th | [data missing] |
| Kweisi Mfume | January 3, 1987 –
February 15, 1996 | Democratic | 7th | Resigned to become CEO of theNAACP. |
April 28, 2020 –
present | First elected in 2020.
Incumbent. |
| Barbara Mikulski | January 3, 1977 –
January 3, 1987 | Democratic | 3rd | [data missing] |
| Joshua W. Miles | March 4, 1895 –
March 3, 1897 | Democratic | 1st | [data missing] |
| Edward T. Miller | January 3, 1947 –
January 3, 1959 | Republican | 1st | [data missing] |
| William O. Mills | May 25, 1971 –
May 24, 1973 | Republican | 1st | Died. |
| George E. Mitchell | March 4, 1823 –
March 3, 1825 | Democratic-Republican[b] | 6th | [data missing] |
March 4, 1825 –
March 3, 1827 | Jacksonian |
December 7, 1829 –
June 28, 1832 | [data missing]
Died. |
| Parren Mitchell | January 3, 1971 –
January 3, 1987 | Democratic | 7th | [data missing] |
| John Montgomery | March 4, 1807 –
April 29, 1811 | Democratic-Republican | 6th | Resigned to becomeAttorney General of Maryland |
| Nicholas R. Moore | March 4, 1803 –
March 3, 1811 | Democratic-Republican | 5th | [data missing] |
March 4, 1813 –
????, 1815 | Resigned before the convening of the14th Congressth. |
| Connie Morella | January 3, 1987 –
January 3, 2003 | Republican | 8th | [data missing] |
| Rogers Morton | January 3, 1963 –
January 29, 1971 | Republican | 1st | Resigned having been appointedUnited States Secretary of the Interior. |
| Sydney E. Mudd I | March 20, 1890 –
March 3, 1891 | Republican | 5th | [data missing] |
March 4, 1897 –
March 3, 1911 | [data missing] |
| Sydney E. Mudd II | March 4, 1915 –
October 11, 1924 | Republican | 5th | Died. |
| William V. Murray | March 4, 1791 –
March 3, 1793 | Pro-Administration | 5th | [data missing] |
March 4, 1793 –
March 3, 1795 | 8th |
March 4, 1795 –
March 3, 1797 | Federalist |
| Raphael Neale | March 4, 1819 –
March 3, 1825 | Federalist[b] | 1st | [data missing] |
| John Nelson | March 4, 1821 –
March 3, 1823 | Democratic-Republican | 4th | [data missing] |
| Roger Nelson | November 6, 1804 –
May 14, 1810 | Democratic-Republican | 4th | Resigned to become associate justice of Maryland's 5th judicial circuit. |
| Joseph H. Nicholson | March 4, 1799 –
March 1, 1806 | Democratic-Republican | 7th | Resigned. |
| William J. O'Brien | March 4, 1873 –
March 3, 1877 | Democratic | 3rd | [data missing] |
| Johnny Olszewski | January 3, 2025 –
present | Democratic | 2nd | First elected in 2024.
Incumbent. |
| Henry Page | March 4, 1891 –
September 3, 1892 | Democratic | 1st | Resigned to become a judge of theMaryland Court of Appeals. |
| Vincent L. Palmisano | March 4, 1927 –
January 3, 1939 | Democratic | 3rd | [data missing] |
| Thomas Parran Sr. | March 4, 1911 –
March 3, 1913 | Republican | 5th | [data missing] |
| James Pearce | March 4, 1835 –
March 3, 1839 | Whig | 2nd | [data missing] |
March 4, 1841 –
March 3, 1843 | [data missing] |
| George A. Pearre | March 4, 1899 –
March 3, 1911 | Republican | 6th | [data missing] |
| Thomas J. Perry | March 4, 1845 –
March 3, 1847 | Democratic | 2nd | [data missing] |
| George Peter | October 7, 1816 –
March 3, 1819 | Federalist | 3rd | [data missing] |
March 4, 1825 –
March 3, 1827 | Jacksonian | [data missing] |
| Charles E. Phelps | March 4, 1865 –
March 3, 1867 | Unconditional Union | 3rd | [data missing] |
March 4, 1867 –
March 3, 1869 | Conservative |
| William Pinkney | March 4, 1791 –
November ??, 1791 | Pro-Administration | 3rd | Resigned. |
March 4, 1815 –
April 18, 1816 | Democratic-Republican | 5th | Resigned to becomeU.S. Minister Plenipotentiary to Russia. |
| Thomas Plater | March 4, 1801 –
March 3, 1805 | Federalist | 3rd | [data missing] |
| Jacob A. Preston | March 4, 1843 –
March 3, 1845 | Whig | 5th | [data missing] |
| Jesse Price | November 3, 1914 –
March 3, 1919 | Democratic | 1st | [data missing] |
| Alexander Randall | March 4, 1841 –
March 3, 1843 | Whig | 4th | [data missing] |
| Jamie Raskin | January 3, 2017 –
present | Democratic | 8th | First elected in 2016.
Incumbent. |
| Isidor Rayner | March 4, 1887 –
March 3, 1889 | Democratic | 4th | [data missing] |
March 4, 1891 –
March 3, 1895 | [data missing] |
| Philip Reed | March 4, 1817 –
March 3, 1819 | Democratic-Republican | 7th | [data missing] |
March 19, 1822 –
March 3, 1823 | 6th | [data missing] |
| James B. Ricaud | March 4, 1855 –
March 3, 1859 | Know Nothing | 2nd | [data missing] |
| Samuel Ringgold | October 15, 1810 –
March 3, 1815 | Democratic-Republican | 4th | [data missing] |
March 4, 1817 –
March 3, 1821 | [data missing] |
| John Ritchie | March 4, 1871 –
March 3, 1873 | Democratic | 4th | [data missing] |
| Charles B. Roberts | March 4, 1875 –
March 3, 1879 | Democratic | 2nd | [data missing] |
| Dudley Roe | January 3, 1945 –
January 3, 1947 | Democratic | 1st | [data missing] |
| James D. Roman | March 4, 1847 –
March 3, 1849 | Whig | 2nd | [data missing] |
| Dutch Ruppersberger | January 3, 2003 –
January 3, 2025 | Democratic | 2nd | First elected in 2002.
Retired. |
| Harry W. Rusk | November 2, 1886 –
March 3, 1897 | Democratic | 3rd | [data missing] |
| John Sarbanes | January 3, 2007 –
January 3, 2025 | Democratic | 3rd | First elected in 2006.
Retired. |
| Paul Sarbanes | January 3, 1971 –
January 3, 1973 | Democratic | 4th | [data missing] |
January 3, 1973 –
January 3, 1977 | 3rd |
| Lansdale G. Sasscer | February 3, 1939 –
January 3, 1953 | Democratic | 5th | [data missing] |
| Charles R. Schirm | March 4, 1901 –
March 3, 1903 | Republican | 4th | [data missing] |
| Benedict J. Semmes | March 4, 1829 –
March 3, 1833 | Anti-Jacksonian | 2nd | [data missing] |
| Joshua Seney | March 4, 1789 –
December 6, 1792 | Anti-Administration | 2nd | Resigned to become Chief Justice of Maryland's 3rd Judicial District |
| Charles S. Sewall | October 1, 1832 –
March 3, 1833 | Jacksonian | 6th | [data missing] |
January 2, 1843 –
March 3, 1843 | Democratic | 3rd | [data missing] |
| Frank T. Shaw | March 4, 1885 –
March 3, 1889 | Democratic | 2nd | [data missing] |
| Upton Sheredine | March 4, 1791 –
March 3, 1793 | Anti-Administration | 6th | [data missing] |
| Jacob Shower | March 4, 1853 –
March 3, 1855 | Democratic | 2nd | [data missing] |
| Carlton R. Sickles | January 3, 1963 –
January 3, 1967 | Democratic | At-large | [data missing] |
| Frank Small Jr. | January 3, 1953 –
January 3, 1955 | Republican | 5th | [data missing] |
| Frank O. Smith | March 4, 1913 –
March 3, 1915 | Democratic | 5th | [data missing] |
| John W. Smith | March 4, 1899 –
January 12, 1900 | Democratic | 1st | Resigned to becomeGovernor of Maryland. |
| Samuel Smith | March 4, 1793 –
March 3, 1803 | Democratic-Republican | 5th | [data missing] |
January 31, 1816 –
December 17, 1822 | Resigned after being elected to theUS Senate. |
| Thomas A. Smith | March 4, 1905 –
March 3, 1907 | Democratic | 1st | [data missing] |
| William Smith | March 4, 1789 –
March 3, 1791 | Anti-Administration | 4th | [data missing] |
| Augustus R. Sollers | March 4, 1841 –
March 3, 1843 | Whig | 7th | [data missing] |
March 4, 1853 –
March 3, 1855 | 6th | [data missing] |
| Gladys Spellman | January 3, 1975 –
January 3, 1981 | Democratic | 5th | [data missing] |
| John S. Spence | March 4, 1823 –
March 3, 1825 | Democratic-Republican[b] | 8th | [data missing] |
| Thomas A. Spence | March 4, 1843 –
March 3, 1845 | Whig | 6th | [data missing] |
| Michael Sprigg | March 4, 1827 –
March 3, 1831 | Jacksonian | 4th | [data missing] |
| Richard Sprigg Jr. | May 5, 1796 –
March 3, 1799 | Democratic-Republican | 2nd | [data missing] |
March 4, 1801 –
February 11, 1802 | Resigned. |
| Thomas Sprigg | March 4, 1793 –
March 3, 1795 | Anti-Administration | 4th | [data missing] |
March 4, 1795 –
March 3, 1797 | Democratic-Republican |
| John N. Steele | May 29, 1834 –
March 3, 1837 | Anti-Jacksonian | 1st | [data missing] |
| Newton Steers | January 3, 1977 –
January 3, 1979 | Republican | 8th | [data missing] |
| Samuel Sterett | March 4, 1791 –
March 3, 1793 | Anti-Administration | 4th | [data missing] |
| John T. Stoddert | March 4, 1833 –
March 3, 1835 | Jacksonian | 8th | [data missing] |
| Frederick Stone | March 4, 1867 –
March 3, 1871 | Democratic | 5th | [data missing] |
| Michael J. Stone | March 4, 1789 –
March 3, 1791 | Anti-Administration | 1st | Elected in 1789.
Lost re-election. |
| Henry Stockbridge Jr. | March 4, 1889 –
March 3, 1891 | Republican | 4th | [data missing] |
| Philip Stuart | March 4, 1811 –
March 3, 1819 | Federalist | 1st | [data missing] |
| Herman Stump | March 4, 1889 –
March 3, 1893 | Democratic | 2nd | [data missing] |
| Thomas Swann | March 4, 1869 –
March 3, 1873 | Democratic | 3rd | [data missing] |
March 4, 1873 –
March 3, 1879 | 4th |
| Joshua F. C. Talbott | March 4, 1879 –
March 3, 1885 | Democratic | 2nd | [data missing] |
March 4, 1893 –
March 3, 1895 | [data missing] |
March 4, 1903 –
October 5, 1918 | Died. |
| Francis Thomas | March 4, 1831 –
March 3, 1833 | Jacksonian | 4th | [data missing] |
March 4, 1833 –
March 3, 1835 | 7th |
March 4, 1835 –
March 3, 1837 | 6th |
March 4, 1837 –
March 3, 1841 | Democratic |
March 4, 1861 –
March 3, 1863 | Union | 5th | [data missing] |
March 4, 1863 –
March 3, 1867 | Unconditional Union | 4th |
March 4, 1867 –
March 3, 1869 | Republican |
| John C. Thomas | March 4, 1799 –
March 3, 1801 | Federalist | 2nd | [data missing] |
| John L. Thomas Jr. | December 4, 1865 –
March 3, 1867 | Unconditional Union | 2nd | [data missing] |
| Philip F. Thomas | March 4, 1839 –
March 3, 1841 | Democratic | 2nd | [data missing] |
March 4, 1875 –
March 3, 1877 | 1st | [data missing] |
| David Trone | January 3, 2019 –
January 3, 2025 | Democratic | 6th | First elected in 2018.
Retired torun for U.S. Senate. |
| James Turner | March 4, 1833 –
March 3, 1837 | Jacksonian | 3rd | [data missing] |
| Millard Tydings | March 4, 1923 –
March 3, 1927 | Democratic | 2nd | [data missing] |
| Milton Urner | March 4, 1879 –
March 3, 1883 | Republican | 6th | [data missing] |
| Chris Van Hollen | January 3, 2003 –
January 3, 2017 | Democratic | 8th | [data missing] |
| Archibald Van Horne | March 4, 1807 –
March 3, 1811 | Democratic-Republican | 2nd | [data missing] |
| Joshua Van Sant | March 4, 1853 –
March 3, 1855 | Democratic | 3rd | [data missing] |
| Frank C. Wachter | March 4, 1899 –
March 3, 1907 | Democratic | 3rd | [data missing] |
| Thomas Y. Walsh | March 4, 1851 –
March 3, 1853 | Whig | 4th | [data missing] |
| William Walsh | March 4, 1875 –
March 3, 1879 | Democratic | 6th | [data missing] |
| David J. Ward | June 8, 1939 –
January 3, 1945 | Democratic | 1st | [data missing] |
| Henry Warfield | March 4, 1819 –
March 3, 1825 | Federalist[b] | 3rd | Elected in 1818.
Retired. |
| George Corbin Washington | March 4, 1819 –
March 3, 1823 | Anti-Jacksonian | 3rd | [data missing] |
March 4, 1829 –
March 3, 1833 | Anti-Jacksonian | [data missing] |
March 4, 1835 –
March 3, 1837 | 5th | [data missing] |
| Edwin H. Webster | March 4, 1859 –
March 3, 1861 | Know Nothing | 2nd | [data missing]
Resigned to become collector of customs at the port of Baltimore. |
March 4, 1861 –
March 3, 1863 | Union |
March 4, 1863 –
July ??, 1865 | Unconditional Union |
| John C. Weems | February 1, 1826 –
March 3, 1829 | Jacksonian | 2nd | [data missing] |
| George L. Wellington | March 4, 1895 –
March 3, 1897 | Republican | 6th | [data missing] |
| John Wethered | March 4, 1843 –
March 3, 1845 | Whig | 3rd | [data missing] |
| James W. Williams | March 4, 1841 –
December 2, 1842 | Democratic | 3rd | Died. |
| Ephraim K Wilson | March 4, 1827 –
March 3, 1829 | Anti-Jacksonian | 8th | [data missing] |
March 4, 1829 –
March 3, 1831 | Jacksonian |
| Ephraim K. Wilson II | March 4, 1873 –
March 3, 1875 | Democratic | 1st | [data missing] |
| Harry B. Wolf | March 4, 1907 –
March 3, 1909 | Democratic | 3rd | [data missing] |
| John T. H. Worthington | March 4, 1831 –
March 3, 1833 | Jacksonian | 5th | [data missing] |
March 4, 1837 –
March 3, 1841 | Democratic | 3rd | [data missing] |
| Thomas C. Worthington | March 4, 1825 –
March 3, 1827 | Anti-Jacksonian | 4th | [data missing] |
| Robert Wright | November 29, 1810 –
March 3, 1817 | Democratic-Republican | 7th | [data missing] |
March 4, 1821 –
March 3, 1823 | [data missing] |
| Albert Wynn | January 3, 1993 –
May 31, 2008 | Democratic | 4th | Resigned. |
| Frederick N. Zihlman | March 4, 1917 –
March 3, 1931 | Republican | 6th | [data missing] |
