# List of United States representatives from Maryland

The following is an alphabetical list of members of the United States House of Representatives from the state of Maryland. For chronological tables of members of both houses of the United States Congress from the state (through the present day), see United States congressional delegations from Maryland. The list of names should be complete, but other data may be incomplete.

## Current representatives

As of January 3, 2025
* 1st district: Andy Harris (R) (since 2011)
* 2nd district: Johnny Olszewski (D) (since 2025)
* 3rd district: Sarah Elfreth (D) (since 2025)
* 4th district: Glenn Ivey (D) (since 2023)
* 5th district: Steny Hoyer (D) (since 1981)
* 6th district: April McClain Delaney (D) (since 2025)
* 7th district: Kweisi Mfume (D) (since 2020)
* 8th district: Jamie Raskin (D) (since 2017)

## List of members representing the state

| 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] |
| Stevenson Archer | March 4, 1819 – March 3, 1821 | Democratic-Republican | 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] |
| George Baer Jr. | March 4, 1815 – March 3, 1817 | Federalist | 4th | [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] |
| Albert Blakeney | March 4, 1921 – March 3, 1923 | Republican | 2nd | [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 to run 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] |
| Gabriel Christie | March 4, 1795 – March 3, 1797 | Democratic-Republican | 6th | [data missing] |
| Gabriel Christie | March 4, 1799 – March 3, 1801 | Democratic-Republican | 6th | [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] |
| William P. Cole Jr. | March 4, 1931 – October 26, 1942 | Democratic | 2nd | Resigned to become judge of US Customs Court |
| Barnes Compton | March 4, 1885 – March 20, 1890 | Democratic | 5th | Lost contested election |
| Barnes Compton | March 4, 1891 – May 15, 1894 | Democratic | 5th | 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] |
| John W. Crisfield | 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 become Mayor of Baltimore. |
| Henry W. Davis | March 4, 1855 – March 3, 1861 | Know Nothing | 4th | [data missing] |
| Henry W. Davis | 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] |
| James W. Denny | March 4, 1903 – March 3, 1905 | Democratic | 4th | [data missing] |
| George Dent | March 4, 1793 – March 3, 1795 | Pro-Administration | 1st | First elected in 1792. Retired. |
| George Dent | March 4, 1795 – March 3, 1801 | Federalist | 1st | First elected in 1792. Retired. |
| 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] |
| Clement Dorsey | March 4, 1829 – March 3, 1831 | Anti-Jacksonian | 1st | [data missing] |
| Gabriel Duvall | November 11, 1794 – March 3, 1795 | Anti-Administration | 2nd | [data missing] Resigned to become Chief Justice of General Court of Maryland. |
| Gabriel Duvall | March 4, 1795 – March 28, 1796 | Democratic-Republican | 2nd | [data missing] Resigned to become Chief Justice of General Court of Maryland. |
| 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 the District 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] |
| William T. Hamilton | March 4, 1853 – March 3, 1855 | Democratic | 4th | [data missing] |
| 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 | 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] |
| William Hindman | March 4, 1793 – March 3, 1795 | Pro-Administration | 7th | [data missing] |
| William Hindman | March 4, 1795 – March 3, 1799 | Federalist | 7th | [data missing] |
| 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] |
| Benjamin C. Howard | March 4, 1835 – March 3, 1837 | Jacksonian | 4th | [data missing] |
| Benjamin C. Howard | March 4, 1837 – March 3, 1839 | Democratic | 4th | [data missing] |
| 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] |
| William H. Jackson | March 4, 1907 – March 3, 1909 | Republican | 1st | [data missing] |
| Daniel Jenifer | March 4, 1831 – March 3, 1833 | Anti-Jacksonian | 1st | [data missing] |
| Daniel Jenifer | March 4, 1835 – March 3, 1837 | Anti-Jacksonian | 7th | [data missing] |
| Daniel Jenifer | March 4, 1837 – March 3, 1841 | Whig | 7th | [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] |
| William C. Johnson | 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] |
| John P. Kennedy | March 4, 1841 – March 3, 1845 | Whig | 4th | [data missing] |
| Joseph Kent | March 4, 1811 – March 3, 1815 | Democratic-Republican | 2nd | [data missing] |
| Joseph Kent | March 4, 1819 – March 3, 1825 | Democratic-Republican | 2nd | [data missing] |
| Joseph Kent | March 4, 1825 – January 6, 1826 | Anti-Jacksonian | 2nd | Resigned after being elected Governor 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] |
| John Leeds Kerr | March 4, 1831 – March 3, 1833 | Anti-Jacksonian | 7th | [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 | 4th | [data missing] |
| David J. Lewis | March 4, 1911 – March 3, 1917 | Democratic | 6th | [data missing] |
| David J. Lewis | March 4, 1931 – January 3, 1939 | Democratic | 6th | [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 | 5th | [data missing] |
| Peter Little | September 2, 1816 – March 3, 1825 | Democratic-Republican | 5th | [data missing] |
| Peter Little | March 4, 1825 – March 3, 1829 | Anti-Jacksonian | 5th | [data missing] |
| 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] |
| Henry May | 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 | 5th | [data missing] |
| Isaac McKim | January 4, 1823 – March 3, 1825 | Democratic-Republican | 5th | [data missing] |
| Isaac McKim | March 4, 1833 – March 3, 1835 | Jacksonian | 5th | [data missing] Died. |
| Isaac McKim | March 4, 1835 – April 1, 1838 | Jacksonian | 4th | [data missing] Died. |
| Robert M. McLane | March 4, 1847 – March 3, 1851 | Democratic | 4th | [data missing] |
| Robert M. McLane | March 4, 1879 – March 3, 1883 | Democratic | 4th | [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] |
| John F. Mercer | March 4, 1793 – April 13, 1794 | Anti-Administration | 2nd | [data missing] |
| 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 the NAACP. |
| Kweisi Mfume | April 28, 2020 – present | Democratic | 7th | 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 | 6th | [data missing] |
| George E. Mitchell | March 4, 1825 – March 3, 1827 | Jacksonian | 6th | [data missing] |
| George E. Mitchell | December 7, 1829 – June 28, 1832 | Jacksonian | 6th | [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 become Attorney General of Maryland |
| Nicholas R. Moore | March 4, 1803 – March 3, 1811 | Democratic-Republican | 5th | [data missing] |
| Nicholas R. Moore | March 4, 1813 – ????, 1815 | Democratic-Republican | 5th | Resigned before the convening of the 14th 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 appointed United States Secretary of the Interior. |
| Sydney E. Mudd I | March 20, 1890 – March 3, 1891 | Republican | 5th | [data missing] |
| Sydney E. Mudd I | March 4, 1897 – March 3, 1911 | Republican | 5th | [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] |
| William V. Murray | March 4, 1793 – March 3, 1795 | Pro-Administration | 8th | [data missing] |
| William V. Murray | March 4, 1795 – March 3, 1797 | Federalist | 8th | [data missing] |
| Raphael Neale | March 4, 1819 – March 3, 1825 | Federalist | 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 the Maryland 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] |
| James Pearce | March 4, 1841 – March 3, 1843 | Whig | 2nd | [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] |
| George Peter | March 4, 1825 – March 3, 1827 | Jacksonian | 3rd | [data missing] |
| Charles E. Phelps | March 4, 1865 – March 3, 1867 | Unconditional Union | 3rd | [data missing] |
| Charles E. Phelps | March 4, 1867 – March 3, 1869 | Conservative | 3rd | [data missing] |
| William Pinkney | March 4, 1791 – November ??, 1791 | Pro-Administration | 3rd | Resigned. |
| William Pinkney | March 4, 1815 – April 18, 1816 | Democratic-Republican | 5th | Resigned to become U.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] |
| Isidor Rayner | March 4, 1891 – March 3, 1895 | Democratic | 4th | [data missing] |
| Philip Reed | March 4, 1817 – March 3, 1819 | Democratic-Republican | 7th | [data missing] |
| Philip Reed | March 19, 1822 – March 3, 1823 | Democratic-Republican | 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] |
| Samuel Ringgold | March 4, 1817 – March 3, 1821 | Democratic-Republican | 4th | [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] |
| Paul Sarbanes | January 3, 1973 – January 3, 1977 | Democratic | 3rd | [data missing] |
| 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] |
| Charles S. Sewall | 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 become Governor of Maryland. |
| Samuel Smith | March 4, 1793 – March 3, 1803 | Democratic-Republican | 5th | [data missing] |
| Samuel Smith | January 31, 1816 – December 17, 1822 | Democratic-Republican | 5th | Resigned after being elected to the US 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] |
| Augustus R. Sollers | March 4, 1853 – March 3, 1855 | Whig | 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 | 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] |
| Richard Sprigg Jr. | March 4, 1801 – February 11, 1802 | Democratic-Republican | 2nd | Resigned. |
| Thomas Sprigg | March 4, 1793 – March 3, 1795 | Anti-Administration | 4th | [data missing] |
| Thomas Sprigg | March 4, 1795 – March 3, 1797 | Democratic-Republican | 4th | [data missing] |
| 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] |
| Thomas Swann | March 4, 1873 – March 3, 1879 | Democratic | 4th | [data missing] |
| Joshua F. C. Talbott | March 4, 1879 – March 3, 1885 | Democratic | 2nd | [data missing] |
| Joshua F. C. Talbott | March 4, 1893 – March 3, 1895 | Democratic | 2nd | [data missing] |
| Joshua F. C. Talbott | March 4, 1903 – October 5, 1918 | Democratic | 2nd | Died. |
| Francis Thomas | March 4, 1831 – March 3, 1833 | Jacksonian | 4th | [data missing] |
| Francis Thomas | March 4, 1833 – March 3, 1835 | Jacksonian | 7th | [data missing] |
| Francis Thomas | March 4, 1835 – March 3, 1837 | Jacksonian | 6th | [data missing] |
| Francis Thomas | March 4, 1837 – March 3, 1841 | Democratic | 6th | [data missing] |
| Francis Thomas | March 4, 1861 – March 3, 1863 | Union | 5th | [data missing] |
| Francis Thomas | March 4, 1863 – March 3, 1867 | Unconditional Union | 4th | [data missing] |
| Francis Thomas | March 4, 1867 – March 3, 1869 | Republican | 4th | [data missing] |
| 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] |
| Philip F. Thomas | March 4, 1875 – March 3, 1877 | Democratic | 1st | [data missing] |
| David Trone | January 3, 2019 – January 3, 2025 | Democratic | 6th | First elected in 2018. Retired to run 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 | 3rd | Elected in 1818. Retired. |
| George Corbin Washington | March 4, 1819 – March 3, 1823 | Anti-Jacksonian | 3rd | [data missing] |
| George Corbin Washington | March 4, 1829 – March 3, 1833 | Anti-Jacksonian | 3rd | [data missing] |
| George Corbin Washington | March 4, 1835 – March 3, 1837 | Anti-Jacksonian | 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. |
| Edwin H. Webster | March 4, 1861 – March 3, 1863 | Union | 2nd | [data missing] Resigned to become collector of customs at the port of Baltimore. |
| Edwin H. Webster | March 4, 1863 – July ??, 1865 | Unconditional Union | 2nd | [data missing] Resigned to become collector of customs at the port of Baltimore. |
| 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] |
| Ephraim K Wilson | March 4, 1829 – March 3, 1831 | Jacksonian | 8th | [data missing] |
| 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] |
| John T. H. Worthington | 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] |
| Robert Wright | March 4, 1821 – March 3, 1823 | Democratic-Republican | 7th | [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] |