| Member |
Party |
District |
Service |
District home |
Note |
| Thomas Peter Akers | Know-nothing | 5th | August 18, 1856 – March 4, 1857 | | Filled vacancy; retired |
| Todd Akin | Republican | 2nd | January 3, 2001 – January 3, 2013 | Wildwood | Ran for U.S. Senate (lost general) |
| Armstead M. Alexander | Democratic | 2nd | March 4, 1883 – March 4, 1885 | | Lost primary |
| Joshua W. Alexander | Democratic | 3rd | March 4, 1907 – December 15, 1919 | | Chairman of Committee on Merchant Marine and Fisheries (1911–1919); resigned to become 2nd U.S. Secretary of Commerce (1919–1921) |
| Thomas Allen | Democratic | 2nd | March 4, 1881 – April 8, 1882 | | Died; namesake of Allenville, Missouri |
| Charles Arthur Anderson | Democratic | 12th | January 3, 1937 – January 3, 1941 | | Lost re-election |
| George W. Anderson | Republican | 9th | March 4, 1865 – March 4, 1869 | | Chairman of Committee on Mileage (1865–1869); retired |
| Thomas Lilbourne Anderson | Know-nothing | 2nd | March 4, 1857 – March 4, 1859 | | Changed parties |
| Independent Democrat | March 4, 1859 – March 4, 1861 | | Retired |
| Orland K. Armstrong | Republican | 6th | January 3, 1951 – January 3, 1953 | | Retired |
| Marshall Arnold | Democratic | 14th | March 4, 1891 – March 4, 1895 | | Lost re-election |
| Samuel W. Arnold | Republican | 1st | January 3, 1943 – January 3, 1949 | | Lost re-election |
| William Henry Ashley | Jacksonian | At-Large | October 31, 1831 – March 4, 1837 | | Ran for governor (lost) |
| Joel Funk Asper | Republican | 7th | March 4, 1869 – March 4, 1871 | | Retired |
| William O. Atkeson | Republican | 6th | March 4, 1921 – March 4, 1923 | | Lost re-election |
| Ralph Emerson Bailey | Republican | 14th | March 4, 1925 – March 4, 1927 | | Retired |
| Wendell Bailey | Republican | 8th | January 3, 1981 – January 3, 1983 | | Redistricting; lost general |
| Claude I. Bakewell | Republican | 11th | January 3, 1947 – January 3, 1949 | | Lost general |
| March 9, 1951 – January 3, 1953 | | Lost re-election |
| Parke M. Banta | Republican | 8th | January 3, 1947 – January 3, 1949 | | Lost re-election |
| John Richard Barret | Democratic | 1st | March 4, 1859 – June 8, 1860 | | Election contested, unseated; succeeded by Francis P. Blair, Jr., who soon resigned |
| October 3, 1860 – March 4, 1861 | | Re-elected to fill vacancy caused by resignation of Francis P. Blair, Jr.; lost re-election |
| Richard Bartholdt | Republican | 10th | March 4, 1893 – March 4, 1915 | | Chairman of Committee on Immigration and Naturalization (1895–1897); Chairman of Committee on Levees and Improvements of the Mississippi River (1897–1905); Chairman of Committee on Public Buildings and Grounds (1905–1911); retired |
| William Edward Barton | Democratic | 16th | March 4, 1931 – March 4, 1933 | | Lost primary |
| Edward Bates | Adams | At-Large | March 4, 1827 – March 4, 1829 | | Lost re-election |
| William Van Ness Bay | Democratic | 2nd | March 4, 1849 – March 4, 1851 | | Later, judge for Missouri Supreme Court (1862–1865) |
| C. Jasper Bell | Democratic | 4th | January 3, 1935 – January 3, 1949 | | Chairman of Committee on Elections No. 1 (1939–1943); Chairman of Committee on Insular Affairs (1943–1947); retired |
| John F. Benjamin | Republican | 8th | March 4, 1865 – March 4, 1871 | | Chairman of the Committee on Invalid Expenditures (1869–1871); retired |
| Marion Tinsley Bennett | Republican | 6th | January 12, 1943 – January 3, 1949 | | Succeeded his late father Philip Allen Bennett; lost re-election; commissioner for U.S. Court of Claims, Washington, D.C., (1949–1964), its chief commissioner (1964–1972); judge for U.S. Court of Claims (1972–1982); judge for U.S. Court of Appeals for the Federal Circuit (1982); senior U.S. Circuit judge (1986–2000d) |
| Philip Allen Bennett | Republican | 6th | January 3, 1941 – December 7, 1942 | | Died; had been re-elected to another term; succeeded by his son Marion Tinsley Bennett |
| Maecenas Eason Benton | Democratic | 15th | March 4, 1897 – March 4, 1905 | | Lost re-election |
| Thomas Hart Benton | Democratic | 1st | March 4, 1853– March 4, 1855 | | Previously U.S. Senator (statehood 1821–1851); Chairman of Committee on Military Affairs (1853–1855); lost re-election |
| Francis Preston Blair, Jr. | Republican | 1st | March 4, 1857 – March 4, 1859 | | Lost re-election |
| June 8, 1860 - June 25, 1860 | | Contested election, seated; resigned, caused vacancy; lost election to fill vacancy |
| March 4, 1861 – June 10, 1864 | | Chairman of Committee on Military Affairs (1861–1862); Contested election |
| James G. Blair | Liberal Republican | 8th | March 4, 1871 – March 4, 1873 | | Retired |
| Richard P. Bland | Democratic | 5th | March 4, 1873 – March 4, 1883 | | Chairman of Committee on Mines and Mining (1875–1877); redistricting |
| 11th | March 4, 1883 – March 4, 1893 | | Chairman of Committee on Coinage, Weights, and Measures (1883–1889) & (1891–1895); redistricting |
| 8th | March 4, 1893 – March 4, 1895 | | Chairman of Committee on Coinage, Weights, and Measures (1891–1895); lost re-election |
| March 4, 1897 – June 15, 1899 | | Died during the 56th Congress (1899–1901); Bland, Missouri took name in memoriam |
| William Thomas Bland | Democratic | 5th | March 4, 1919 – March 4, 1921 | | Lost re-election |
| Henry Taylor Blow | Unconditional Unionist | 2nd | March 4, 1863 – March 4, 1865 | | Retired |
| Republican | March 4, 1865 – March 4, 1867 | | |
| Roy Blunt | Republican | 7th | January 3, 1997 – January 3, 2011 | Strafford | Majority Whip (2003–2007); U.S. Senator (2011–present) |
| Robert N. Bodine | Democratic | 2nd | March 4, 1897 – March 4, 1899 | | Lost primary |
| Richard Walker Bolling | Democratic | 5th | January 3, 1949 – January 3, 1983 | | Chairman of Select Committee on Committees of the House (1973–1975); Chairman of Joint Economic Committee (1977–1979); Chairman of House Rules Committee (1979–1983); retired |
| Charles F. Booher | Democratic | 4th | February 19, 1889 - March 4, 1889 | | Filled vacancy; not a candidate for full term |
| March 4, 1907 – January 21, 1921 | | Died |
| William Patterson Borland | Democratic | 5th | March 4, 1909 – February 20, 1919 | | Died |
| Gustavus Miller Bower | Democratic | At-Large | March 4, 1843 – March 4, 1845 | | |
| James B. Bowlin | Democratic | At-Large | March 4, 1843 – March 4, 1847 | | |
| 1st | March 4, 1847 – March 4, 1851 | | Chairman of Committee on Public Lands (1849–1851); lost re-election |
| Sempronius H. Boyd | Unionist | 4th | March 4, 1863 – March 4, 1865 | | Chairman of Committee on Revisal and Unfinished Business (1863–1865); later, judge for Missouri 14th Judicial Circuit Court (1865) |
| Republican | March 4, 1869 – March 4, 1871 | | Chairman of Committee on Revolutionary Claims (1869–1871) |
| James Broadhead | Democratic | 9th | March 4, 1883 – March 4, 1885 | | Retired |
| Charles Harrison Brown | Democratic | 7th | January 3, 1957 – January 3, 1961 | | Lost re-election |
| Aylett Hawes Buckner | Democratic | 13th | March 4, 1873 – March 4, 1883 | | Chairman of Committee on District of Columbia (1875–1877); Chairman of Committee on Banking and Currency (1879–1885); redistricting |
| 7th | March 4, 1883 – March 4, 1885 | | Chairman of Committee on Banking and Currency (1879–1885); retired |
| Jack Buechner | Republican | 2nd | January 3, 1987 – January 3, 1991 | | Lost general |
| John Bull | Anti-Jacksonian | At-Large | March 4, 1833 – March 4, 1835 | | |
| Samuel Swinfin Burdett | Republican | 5th | March 4, 1869 – March 4, 1873 | | Chairman of Committee on Manufactures (1871–1873); lost re-election |
| Bill Burlison | Democratic | 10th | January 3, 1969 – January 3, 1981 | | Lost re-election |
| Daniel Dee Burnes | Democratic | 4th | March 4, 1893 – March 4, 1895 | | Retired |
| James N. Burnes | Democratic | 4th | March 4, 1883 – January 23, 1889 | | Died; had been re-elected to another term |
| Joseph Henry Burrows | Greenback | 10th | March 4, 1881 – March 4, 1883 | | Redistricting; lost re-election |
| Charles Germman Burton | Republican | 15th | March 4, 1895 – March 4, 1897 | | (possibly 13th); lost re-election |
| James Joseph Butler | Democratic | 12th | March 4, 1901 – June 28, 1902 | | Election contested, seat vacated |
| November 4, 1902 – February 26, 1903 | | Elected to fill vacancy, election contested, unseated |
| March 4, 1903 – March 4, 1905 | | Re-elected; retired |
| Samuel Byrns | Democratic | 10th | March 4, 1891 – March 4, 1893 | | Lost primary |
| Clarence Cannon | Democratic | 9th | March 4, 1923 – March 4, 1933 | | Redistricting |
| At-Large | March 4, 1933 – January 3, 1935 | | Redistricting |
| 9th | January 3, 1935 – May 12, 1964 | | Died; Chairman of House Appropritions Committee (1941–1947), (1949–1953), & (1955–1964) |
| A. S. J. Carnahan | Democratic | 8th | January 3, 1945 – January 3, 1947 | | Lost re-election; father of Mel Carnahan, father-in-law of Jean Carnahan, grandfather of Robin Carnahan & Russ Carnahan |
| January 3, 1949 – January 3, 1961 | | Lost primary; father of Mel Carnahan, father-in-law of Jean Carnahan, grandfather of Robin Carnahan & Russ Carnahan |
| Russ Carnahan | Democratic | 3rd | January 3, 2005 – January 3, 2013 | St. Louis | Brother of Robin Carnahan, son of Jean Carnahan & Mel Carnahan; grandson of A. S. J. Carnahan |
| Samuel Caruthers | Whig | 7th | March 4, 1853 – March 4, 1855 | | Changed parties |
| Opposition | March 4, 1855 – March 4, 1857 | | Changed parties |
| Democratic | March 4, 1857 – March 4, 1859 | | |
| Theron Ephron Catlin | Republican | 11th | March 4, 1911 – August 12, 1912 | | Election contested, unseated; lost re-election |
| Henry S. Caulfield | Republican | 11th | March 4, 1907 – March 4, 1909 | | Retired; later, judge of St. Louis Court of Appeals (1910–1912) and 37th Governor of Missouri (1929–1933) |
| George H. Christopher | Democratic | 6th | January 3, 1949 - January 3, 1951 | | Lost re-election |
| 4th | January 3, 1955 – January 23, 1959 | | Died three weeks into 86th Congress |
| James Robert Claiborne | Democratic | At-Large | March 4, 1933 – January 3, 1935 | | Redistricting |
| 12th | January 3, 1935 – January 3, 1937 | | Lost primary |
| Martin L. Clardy | Democratic | 1st | March 4, 1879 – March 4, 1883 | | Redistricting |
| 10th | March 4, 1883 – March 4, 1889 | | Chairman of Committee on Mines and Mining (1885–1887), Chairman of Committee on Commerce (1887–1889); lost re-election |
| Champ Clark | Democratic | 9th | March 4, 1893 – March 4, 1895 | | Lost re-election |
| March 4, 1897 – March 2, 1921 | | Died one day before leaving office; 41st Speaker of the House (1911–1919) (only one from Missouri); Minority Leader (1908–1911) & (1919–1921); father of Bennett Champ Clark |
| Charles Nelson Clark | Republican | 1st | March 4, 1895 – March 4, 1897 | | |
| John Bullock Clark | Democratic | 3rd | December 7, 1857 – July 13, 1861 | | Expelled during third term for taking up arms against the Union; later, Senator (1862–1864) & Representative (1864–1865) in the Confederate Congress; father of John Bullock Clark, Jr. |
| John Bullock Clark, Jr. | Democratic | 11th | March 4, 1873 – March 4, 1883 | | Chairman of Committee on the Post Office and Post Roads (1875–1877); redistricting; lost primary; son of John Bullock Clark |
| Bill Clay | Democratic | 1st | January 3, 1969 – January 3, 2001 | | Chairman of Committee on the Post Office and Civil Service (1991–1995); retired; succeeded by his son, William Lacy Clay, Jr. |
| William Lacy Clay, Jr. | Democratic | 1st | January 3, 2001 – present | St. Louis | Incumbent; succeeded his father, Bill Clay |
| Emanuel Cleaver | Democratic | 5th | January 3, 2005 – present | Kansas City | Incumbent |
| Seth Wallace Cobb | Democratic | 9th | March 4, 1891 – March 4, 1893 | | |
| 12th | March 4, 1893 – March 4, 1897 | | Retired |
| Charles F. Cochran | Democratic | 4th | March 4, 1897 – March 4, 1905 | | Withdrew from primary |
| John J. Cochran | Democratic | 11th | November 2, 1926 – March 4, 1933 | | Chairman of Committee on Expenditures in Executive Departments (1931–1941); redistricting |
| At-Large | March 4, 1933 – January 3, 1935 | | Redistricting; ran for U.S. Senate (lost); was re-elected |
| 13th | January 3, 1935 – January 3, 1947 | | Chairman of Committee on Accounts (1939–1947); retired |
| Nathan Cole | Republican | 2nd | March 4, 1877 – March 4, 1879 | | Lost re-election |
| William Clay Cole | Republican | 3rd | January 3, 1943 – January 3, 1949 | | Lost re-election |
| 6th | January 3, 1953 – January 3, 1955 | | Lost re-election |
| Earl Thomas Coleman | Republican | 6th | November 2, 1976 – January 3, 1993 | | Lost general |
| George H. Combs, Jr. | Democratic | 5th | March 4, 1927 – March 4, 1929 | | Retired |
| Abram Comingo | Democratic | 6th | March 4, 1871 – March 4, 1873 | | Redistricting |
| 8th | March 4, 1873 – March 4, 1875 | | Retired |
| James Cooney | Democratic | 7th | March 4, 1897 – March 4, 1903 | | Lost primary |
| John Cosgrove | Democratic | 6th | March 4, 1883 – March 4, 1885 | | Withdrew after nomination |
| Harry M. Coudrey | Republican | 12th | June 23, 1906 – March 4, 1911 | | Contested election, seated; re-elected; retired |
| William S. Cowherd | Democratic | 5th | March 4, 1897 – March 4, 1905 | | Lost re-election |
| James Craig | Democratic | 4th | March 4, 1857 – March 4, 1861 | | |
| Thomas Theodore Crittenden | Democratic | 7th | March 4, 1873 – March 4, 1875 | | Retired |
| March 4, 1877 – March 4, 1879 | | Retired; later, 24th Governor of Missouri (1881–1885) |
| Charles A. Crow | Republican | 14th | March 4, 1909 – March 4, 1911 | | Lost re-election |
| George Calhoun Crowther | Republican | 4th | March 4, 1895 – March 4, 1897 | | Lost re-election |
| Thomas B. Curtis | Republican | 12th | January 3, 1951 – January 3, 1953 | | Redistricting |
| 2nd | January 3, 1953 – January 3, 1969 | | Ran for U.S. Senate (lost) |
| Pat Danner | Democratic | 6th | January 3, 1993 – January 3, 2001 | | Retired |
| John Fletcher Darby | Whig | 1st | March 4, 1851 – March 4, 1853 | | |
| Lowndes Henry Davis | Democratic | 4th | March 4, 1879 – March 4, 1883 | | Redistricting |
| 14th | March 4, 1883 – March 4, 1885 | | Chairman of Committee on Expenditures in the Treasury Department (1883–1885) |
| James Alexander Daugherty | Democratic | 15th | March 4, 1911 – March 4, 1913 | | Lost primary |
| William Dawson | Democratic | 14th | March 4, 1885 – March 4, 1887 | | Lost primary |
| David A. De Armond | Democratic | 12th | March 4, 1891 – March 4, 1893 | | Redistricting |
| 6th | March 4, 1893 – November 23, 1909 | | Died |
| Rezin A. De Bolt | Democratic | 10th | March 4, 1875 – March 4, 1877 | | Retired |
| Perl D. Decker | Democratic | 15th | March 4, 1913 – March 4, 1919 | | Lost re-election |
| Clement C. Dickinson | Democratic | 6th | February 1, 1910 – March 4, 1921 | | Lost re-election |
| March 4, 1923 – March 4, 1929 | | Lost re-election |
| March 4, 1931 – March 4, 1933 | | Redistricting; lost re-election |
| At-Large | March 4, 1933 – January 3, 1935 | | Redistricting; lost primary |
| Alexander Monroe Dockery | Democratic | 3rd | March 4, 1883 – March 4, 1899 | | Chairman of Committee on Expenditures in the Post Office Department (1887–1889); retired; later, 30th Governor of Missouri (1901–1905) |
| John Dougherty | Democratic | 3rd | March 4, 1899– March 4, 1905 | | Lost primary |
| Richard M. Duncan | Democratic | At-Large | March 4, 1933 – January 3, 1935 | | Redistricting |
| 3rd | January 3, 1935 – January 3, 1943 | | Redistricting; lost re-election; later, judge for U.S. District Court for the Eastern District of Missouri (1943–1965); simultaneously judge for U.S. District Court for the Western District of Missouri (1943–1965); senior District judge (1965–1974d) |
| David Patterson Dyer | Republican | 9th | March 4, 1869 – March 4, 1871 | | Lost re-election; later, U.S. Attorney for U.S. District Court for the Eastern District of Missouri (1875–1876), judge for U.S. District Court for the Eastern District of Missouri (1907–1919); senior District judge (1919–1924d); uncle of Leonidas C. Dyer |
| Leonidas C. Dyer | Republican | 12th | March 4, 1911 – June 19, 1914 | | Election contested, unseated; nephew of David Patterson Dyer |
| March 4, 1915 – March 4, 1933 | | Lost re-election; nephew of David Patterson Dyer |
| Rufus Easton | Delegate | Territory | September 17, 1814 – August 5, 1816 | | |
| John Cummins Edwards | Democratic |
At-Large | March 4, 1841 – March 4, 1843 | | Ran and became 9th Governor of Missouri (1844–1848) |
| Edgar C. Ellis | Republican | 5th | March 4, 1905 – March 4, 1909 | | Lost re-election |
| March 4, 1921 – March 4, 1923 | | Lost re-election |
| March 4, 1925 – March 4, 1927 | | Lost re-election |
| March 4, 1929 – March 4, 1931 | | Lost re-election |
| William P. Elmer | Republican | 8th | January 3, 1943 – January 3, 1945 | | Lost re-election |
| Politte Elvins | Republican | 13th | March 4, 1909 – March 4, 1911 | | Lost re-election |
| Bill Emerson | Republican | 10th | January 3, 1981 – January 3, 1983 | Cape Girardeau | Redistricting |
| 8th | January 3, 1983 – June 22, 1996 | Died; succeeded by his widow, Jo Ann Emerson |
| Jo Ann Emerson | Republican | 8th | November 5, 1996 – January 3, 1997 | Cape Girardeau | Succeeded her late husband, Bill Emerson |
| Independent | January 3, 1997 - January 8, 1997 | Elected as an Independent caucusing with Republicans due to Missouri state law |
| Republican | January 8, 1997 – January 22, 2013 | Resigned |
| Frederick Essen | Republican | 10th | November 5, 1918 – March 4, 1919 | | Retired |
| Charles L. Faust | Republican | 4th | March 4, 1921 – December 17, 1928 | | Died; had been re-elected to another term; Chairman of Committee on the Census (1923–1925) |
| Gustavus A. Finkelnburg | Republican | 2nd | March 4, 1869 – March 4, 1871 | | Changed parties |
| Liberal Republican | March 4, 1871 – March 4, 1873 | | Later, judge for U.S. District Court for the Eastern District of Missouri (1905–1907) |
| Nicholas Ford | Greenback | 9th | March 4, 1879 – March 4, 1883 | | Redistricting; lost re-election |
| Nathan Frank | Republican | 9th | March 4, 1889 – March 4, 1891 | | Retired |
| Benjamin Joseph Franklin | Democratic | 8th | March 4, 1875 – March 4, 1879 | | Chairman of Committee on Territories (1877–1879); withdrew during primary; later, 12th Governor of Arizona Territory (1896–1897) |
| Richard Graham Frost | Democratic | 3rd | March 4, 1879 – March 2, 1883 | | Election contested, unseated 1 day before end of 47th Congress |
| James F. Fulbright | Democratic | 14th | March 4, 1923 – March 4, 1925 | | Lost re-election |
| March 4, 1927 – March 4, 1929 | | Lost re-election |
| March 4, 1931 – March 4, 1933 | | Lost primary; later judge of Springfield Court of Appeals (1937–1948d) |
| Frank B. Fulkerson | Republican | 4th | March 4, 1905 – March 4, 1907 | | Lost re-election |
| Robert Washington Fyan | Democratic | 13th | March 4, 1883 – March 4, 1885 | | |
| March 4, 1891 – March 4, 1895 | | |
| Dick Gephardt | Democratic | 3rd | January 3, 1977 – January 3, 2005 | | House Majority Leader (1989–1995); House Minority Leader (1995–2003); ran for president (lost primary) |
| Michael Joseph Gill | Democratic | 12th | June 19, 1914 – March 4, 1915 | | Contested election, seated; lost re-election |
| Patrick F. Gill | Democratic | 11th | March 4, 1909 – March 4, 1911 | | Lost re-election, unseated |
| August 12, 1912 – March 4, 1913 | | Contested election, seated |
| John Milton Glover | Democratic | 9th | March 4, 1885 – March 4, 1889 | | Ran for governor (lost); nephew of John Montgomery Glover |
| John Montgomery Glover | Democratic | 12th | March 4, 1877 – March 4, 1879 | | Chairman of Committee on Expenditures in the Department of the Treasury (1877–1879); lost primary; uncle of John Milton Glover |
| Joseph J. Gravely | Republican | 4th | March 4, 1867 – March 4, 1869 | | Retired; later, 15th Lieutenant Governor of Missouri (1871–1872d) |
| Alexander Graves | Democratic | 5th | March 4, 1883 – March 4, 1885 | | Lost re-election |
| Sam Graves | Republican | 6th | January 3, 2001 – present | Tarkio | Incumbent |
| James S. Green | Democratic | 3rd | March 4, 1847 – March 4, 1851 | | Retired; was later re-elected to the House but also elected and took office as U.S. Senator (1857–1861) |
| Thomas Hackney | Democratic | 15th | March 4, 1907 – March 4, 1909 | | Lost re-election |
| John Blackwell Hale | Democratic | 2nd | March 4, 1885 –March 4, 1887 | | Lost primary, ran as Independent (lost) |
| Durward Gorham Hall | Republican | 7th | January 3, 1961 – January 3, 1973 | | Retired |
| Uriel Sebree Hall | Democratic | 2nd | March 4, 1893 – March 4, 1897 | | Retired; son of William Augustus Hall; nephew of Willard Preble Hall |
| Willard Preble Hall | Democratic | 4th | March 4, 1847 – March 4, 1853 | | Chairman of Committee on Private Land Claims (1849–1851); Chairman of Committee on Public Lands (1851–1853); later, 12th Lieutenant Governor of Missouri (1861–1864) and 17th Governor of Missouri (1864–1865); brother of William Augustus Hall; uncle of Uriel Sebree Hall |
| William Augustus Hall | Democratic | 3rd | January 20, 1862 – March 4, 1863 | | Redistricting; brother of Willard Preble Hall; father of Uriel Sebree Hall |
| Unionist | 8th | March 4, 1863 – March 4, 1865 | | Retired; brother of Willard Preble Hall; father of Uriel Sebree Hall |
| Thomas Jefferson Halsey | Republican | 6th | March 4, 1929 – March 4, 1931 | | Lost re-election |
| Courtney W. Hamlin | Democratic | 7th | March 4, 1903 – March 4, 1905 | | Lost re-election |
| March 4, 1907 – March 4, 1919 | | Chairman of Committee on Expenditures in the State Department (1911–1919); lost primary |
| Mel Hancock | Republican | 7th | January 3, 1989 – January 3, 1997 | | Retired |
| Albert Galliton Harrison | Jacksonian | At-Large | March 4, 1835 – March 4, 1837 | | Changed parties |
| Democratic | March 4, 1837 – September 7, 1839 | | Died |
| Vicky Hartzler | Republican | 4th | January 3, 2011 – present | Harrisonville | Incumbent |
| William H. Hatch | Democratic | 12th | March 4, 1879 – March 4, 1883 | | Redistricting |
| 1st | March 4, 1883 – March 4, 1895 | | Chairman of Committee on Agriculture (1883–1889) & (1891–1895); lost re-election |
| Robert Anthony Hatcher | Democratic | 4th | March 4, 1873 – March 4, 1879 | | Chairman of Committee on Public Expenditures (1877–1879) |
| Harrison E. Havens | Republican | 4th | March 4, 1871 – March 4, 1873 | | Redistricting |
| 6th | March 4, 1873 – March 4, 1875 | | Chairman of Committee on Public Expenditures (1873–1875); lost re-election |
| Harry B. Hawes | Democratic | 11th | March 4, 1921 – October 15, 1926 | | Resigned to run and became U.S. Senator (1926–1933) |
| Edward D. Hays | Republican | 14th | March 4, 1919 – March 4, 1923 | | Lost re-election |
| Ira Sherwin Hazeltine | Greenback | 6th | March 4, 1881 – March 4, 1883 | | Redistricting; lost re-election |
| John T. Heard | Democratic | 6th | March 4, 1885 – March 4, 1893 | | Redistricting |
| 7th | March 4, 1893 – March 4, 1895 | | Chairman, of Committee on District of Columbia (1893–1895); lost re-election |
| Edward Hempstead | Delegate | Territory | November 9, 1812 – September 17, 1814 | | |
| Thomas C. Hennings, Jr. | Democratic | 11th | January 3, 1935 – December 31, 1940 | | Resigned to run and became circuit attorney for St. Louis (1941–1944); later U.S. Senator (1951–1960d) |
| Walter Lewis Hensley | Democratic | 13th | March 4, 1911 – March 4, 1919 | | Retired |
| Jeffrey Paul Hillelson | Republican | 4th | January 3, 1953 – January 3, 1955 | | Lost re-election |
| John Hogan | Democratic | 1st | March 4, 1865 – March 4, 1867 | | Lost re-election |
| David W. Hopkins | Republican | 4th | February 5, 1929 – March 4, 1933 | | Lost re-election |
| Joan Kelly Horn | Democratic | 2nd | January 3, 1991 – January 3, 1993 | | Lost general |
| Joel Douglas Hubbard | Republican | 8th | March 4, 1895 – March 4, 1897 | | Lost re-election |
| James Madison Hughes | Democratic | At-Large | March 4, 1843 – March 4, 1845 | | |
| Theodore W. Hukriede | Republican | 9th | March 4, 1921 – March 4, 1923 | | Lost re-election; later U.S. Marshal for eastern district of Missouri (1923–1933) |
| William Raleigh Hull, Jr. | Democratic | 6th | January 3, 1955 – January 3, 1973 | | Retired |
| Kenny Hulshof | Republican | 9th | January 3, 1997 – January 3, 2009 | Columbia, Missouri | Ran for governor (lost general) |
| William L. Hungate | Democratic | 9th | November 3, 1964 – January 3, 1977 | | Retired; later, judge for U.S. District Court for the Eastern District of Missouri (1979–1992) |
| John T. Hunt | Democratic | 11th | March 4, 1903 – March 4, 1907 | | Lost re-election |
| John E. Hutton | Democratic | 7th | March 4, 1885 – March 4, 1889 | | Retired |
| Ira B. Hyde | Republican | 10th | March 4, 1873 – March 4, 1875 | | Lost re-election; father of Arthur M. Hyde & Laurance M. Hyde |
| Richard Howard Ichord, Jr. | Democratic | 8th | January 3, 1961 – January 3, 1981 | | Chairman of House Un-American Activities Committee (HUAC) beginning 1969, and its successor Committee on Internal Security until 1975; retired |
| William L. Igoe | Democratic | 11th | March 4, 1913 – March 4, 1921 | | Retired |
| Leonard Irving | Democratic | 4th | January 3, 1949 – January 3, 1953 | | Lost primary |
| Anthony F. Ittner | Republican | 1st | March 4, 1877 – March 4, 1879 | | Retired |
| John Jameson | Democratic | At-Large | December 12, 1839 – March 4, 1841 | | Retired |
| March 4, 1843 – March 4, 1845 | | Retired |
| 1st | March 4, 1847 – March 4, 1849 | | Retired |
| Robert Davis Johnson | Democratic | 7th | September 29, 1931 – March 4, 1933 | | Lost primary; later, judge for Missouri 15th Judicial Circuit Court (1940–1947) |
| Rowland Louis Johnston | Republican | 16th | March 4, 1929 – March 4, 1931 | | Lost re-election |
| Paul C. Jones | Democratic | 10th | November 2, 1948 – January 3, 1969 | | Retired |
| Henry L. Jost | Democratic | 5th | March 4, 1923 – March 4, 1925 | | Retired |
| Charles Frederick Joy | Republican | 11th | March 4, 1893 – April 3, 1894 | | Election contested, unseated |
| March 4, 1895 – March 4, 1903 | | Re-elected; lost primary |
| Raymond W. Karst | Democratic | 12th | January 3, 1949 – January 3, 1951 | | Lost re-election |
| Frank M. Karsten | Democratic | 13th | January 3, 1947 – January 3, 1953 | | Redistricting |
| 1st | January 3, 1953 – January 3, 1969 | | Retired |
| Edward C. Kehr | Democratic | 1st | March 4, 1875 – March 4, 1877 | | Lost re-election |
| John R. Kelso | Independent Republican | 4th | March 4, 1865 – March 4, 1867 | | Retired |
| Luther Martin Kennett | Whig | 1st | March 4, 1855 – March 4, 1857 | | Lost re-election; namesake of Kennett, Missouri |
| Charles Edward Kiefner | Republican | 13th | March 4, 1925 – March 4, 1927 | | Lost re-election |
| March 4, 1929 – March 4, 1931 | | Lost re-election |
| Andrew King | Democratic | 9th | March 4, 1871 – March 4, 1873 | | Retired |
| Austin Augustus King | Unionist | 6th | March 4, 1863 – March 4, 1865 | | Previously 10th Governor of Missouri (1848–1853); lost re-election |
| William Medcalf Kinsey | Republican | 10th | March 4, 1889 – March 4, 1891 | | Lost re-election |
| Frank B. Klepper | Republican | 3rd | March 4, 1905 – March 4, 1907 | | Lost re-election |
| Samuel Knox | Unionist | 1st | June 10, 1864 – March 4, 1865 | | Contested election, seated; lost re-election |
| J. Robert Lamar | Democratic | 16th | March 4, 1903 – March 4, 1905 | | Lost re-election |
| March 4, 1907 – March 4, 1909 | | Lost re-election |
| Alfred William Lamb | Democratic | 2nd | March 4, 1853 – March 4, 1855 | | Retired |
| Henry F. Lawrence | Republican | 3rd | March 4, 1921 – March 4, 1923 | | Lost re-election |
| Alfred Morrison Lay | Democratic | 7th | March 4, 1879 - December 8, 1879 | | Died |
| Frank H. Lee | Democratic | At-Large | March 4, 1933 – January 3, 1935 | | Redistricting; lost re-election |
| James Johnson Lindley | Whig | 3rd | March 4, 1853 – March 4, 1855 | | Changed parties |
| Opposition | March 4, 1855 – March 4, 1857 | | Retired; later, judge for Missouri 8th Judicial Circuit Court (1871–1883) |
| Jerry Litton | Democratic | 6th | January 3, 1973 – August 3, 1976 | | Died in airplane crash while nominee for U.S. Senate |
| James Tilghman Lloyd | Democratic | 1st | June 1, 1897 – March 4, 1917 | | Chairman of Committee on Accounts (1911–1917); retired |
| Benjamin F. Loan | Unionist | 7th | March 4, 1863 – March 4, 1865 | | Changed parties |
| Republican | March 4, 1865 – March 4, 1869 | | Chairman of Committee on Revolutionary Pensions; lost re-election |
| Billy Long | Republican | 7th | 2011–present | Springfield | Incumbent |
| Ralph F. Lozier | Democratic | 2nd | March 4, 1923 – March 4, 1933 | | Chairman of Committee on the Census (1931–1935); redistricting |
| At-Large | March 4, 1933 – January 3, 1935 | | Redistricting; lost primary; later, judge for Missouri 7th Judicial Circuit Court (1936) |
| Blaine Luetkemeyer | Republican | 9th | January 3, 2009 – January 3, 2013 | St. Elizabeth | |
| 3rd | January 3, 2013 – present | Incumbent |
| Clare Magee | Democratic | 1st | January 3, 1949 – January 3, 1953 | | Retired |
| Samuel C. Major | Democratic | 7th | March 4, 1919 – March 4, 1921 | | Lost re-election |
| March 4, 1923 – March 4, 1929 | | Lost re-election |
| March 4, 1931 - July 28, 1931 | | Died |
| Joe J. Manlove | Republican | 15th | March 4, 1923 – March 4, 1933 | | Lost re-election |
| Charles H. Mansur | Democratic | 2nd | March 4, 1887 – March 4, 1893 | | Lost primary |
| Karen McCarthy | Democratic | 5th | January 3, 1995 – January 3, 2005 | | Retired |
| Joseph W. McClurg | Unconditional Unionist | 5th | March 4, 1863 – March 4, 1865 | | Changed parties |
| Republican | March 4, 1865 – ??, 1868 | | Resigned after election as 19th Governor of Missouri (1869–1871) |
| James Robinson McCormick | Democratic | 3rd | December 17, 1867 – March 4, 1873 | | Retired |
| William McDaniel | Democratic | At-Large | December 7, 1846 – March 4, 1847 | | Filled vacancy |
| James Henry McLean | Republican | 4th | December 15, 1882 – March 4, 1883 | | |
| Isaac V. McPherson | Republican | 15th | March 4, 1919 – March 4, 1923 | | Lost primary |
| Jacob Edwin Meeker | Republican | 10th | March 4, 1915 – October 16, 1918 | | Died |
| Lyne Metcalfe | Republican | 3rd | March 4, 1877 – March 4, 1879 | | Lost re-election |
| John Miller | Democratic | At-Large | March 4, 1837 – March 4, 1843 | | Previously, 4th Governor of Missouri (1825–1832); retired |
| John Gaines Miller | Whig | 3rd | March 4, 1851 – March 4, 1853 | | Redistricting |
| 5th | March 4, 1853 – March 4, 1855 | | Changed parties |
| Opposition | March 4, 1855 – May 11, 1856 | | Died |
| Louis E. Miller | Republican | 11th | January 3, 1943 – January 3, 1945 | | Lost re-election |
| Jacob L. Milligan | Democratic | 3rd | February 14, 1920 – March 4, 1921 | | Lost re-election |
| March 4, 1923 – March 4, 1933 | | Redistricting |
| At-Large | March 4, 1933 – January 3, 1935 | | Redistricting; ran for U.S. Senate (lost) |
| Frank C. Millspaugh | Republican | 1st | March 4, 1921 – December 5, 1922 | | Lost re-election and resigned |
| Charles Henry Morgan | Democratic | 6th | March 4, 1875 – March 4, 1879 | | Lost re-election |
| 12th | March 4, 1883 – March 4, 1885 | | Chairman of Committee on Expenditures in the Post Office Department (1883–1885); lost re-election |
| 15th | March 4, 1893 – March 4, 1895 | | Lost primary |
| Republican | March 4, 1909 – March 4, 1911 | | Lost re-election |
| Morgan M. Moulder | Democratic | 2nd | January 3, 1949 – January 3, 1953 | | Redistricting |
| 11th | January 3, 1953 – January 3, 1963 | | Retired |
| Norman Adolphus Mozley | Republican | 14th | March 4, 1895 – March 4, 1897 | | Retired |
| Arthur P. Murphy | Republican | 16th | March 4, 1905 – March 4, 1907 | | Lost re-election |
| March 4, 1909 – March 4, 1911 | | Lost re-election |
| William L. Nelson | Democratic | 8th | March 4, 1919 – March 4, 1921 | | Lost re-election |
| March 4, 1925 – March 4, 1933 | | Redistricting; lost primary |
| 2nd | January 3, 1935 – January 3, 1943 | | Redistricting; lost re-election |
| Carman A. Newcomb | Republican | 2nd | March 4, 1867 – March 4, 1869 | | Retired; later U.S. Marshal for eastern district of Missouri (1869–1875) |
| Cleveland A. Newton | Republican | 10th | March 4, 1919 – March 4, 1927 | | Retired |
| Frederick G. Niedringhaus | Republican | 8th | March 4, 1889 – March 4, 1891 | | Retired; uncle of Henry F. Niedringhaus |
| Henry F. Niedringhaus | Republican | 10th | March 4, 1927 – March 4, 1933 | | Lost re-election; nephew of Frederick G. Niedringhaus |
| John William Noell | Democratic | 7th | March 4, 1859 – March 4, 1863 | | Redistricting; changed parties; father of Thomas E. Noell |
| Unionist | 3rd | March 4, 1863 - March 14, 1863 | | Died; father of Thomas E. Noell (who also died in office) |
| Thomas E. Noell | Republican | 3rd | March 4, 1865 – March 4, 1867 | | Changed parties; son of John William Noell |
| Democratic | March 4, 1867 - October 3, 1867 | | Died; son of John William Noell (who also died in office) |
| Elijah Hise Norton | Democratic | 4th | March 4, 1861 – March 4, 1863 | | Lost re-election; later, judge for Missouri Supreme Court (1877–1888) |
| Richard Henry Norton | Democratic | 7th | March 4, 1889 – March 4, 1893 | | Lost re-election |
| Mordecai Oliver | Whig | 4th | March 4, 1853 – March 4, 1855 | | Changed parties |
| Opposition | March 4, 1855 – March 4, 1857 | | |
| John Joseph O'Neill | Democratic | 8th | March 4, 1883 – March 4, 1889 | | Chairman of Committee on Expenditures on Public Buildings (1885–1887); Chairman of Committee on Labor (1885–1889); lost re-election |
| March 4, 1891 – March 4, 1893 | | Redistricting; lost re-election |
| 11th | April 3, 1894 – March 4, 1895 | | Contested election, seated; retired |
| John William Palmer | Republican | 7th | March 4, 1929 – March 4, 1931 | | Lost re-election |
| Isaac Parker | Republican | 7th | March 4, 1871 – March 4, 1873 | | |
| 9th | March 4, 1873 – March 4, 1875 | | Ran for U.S. Senate (lost); later, judge for U.S. District Court for Western Arkansas (1875–1896d) |
| Roscoe C. Patterson | Republican | 7th | March 4, 1921 – March 4, 1923 | | Lost re-election; later, district attorney for U.S. District Court for the Western District of Missouri (1925–1929) and U.S. Senator (1929–1935) |
| Charles Edward Pearce | Republican | 12th | March 4, 1897 – March 4, 1901 | | Retired |
| Spencer Darwin Pettis | Jacksonian | At-Large | March 4, 1829 – August 28, 1831 | | Died during second term; namesake of Pettis County, Missouri |
| John S. Phelps | Democratic | At-Large | March 4, 1845 – March 4, 1847 | | Redistricting |
| 5th | March 4, 1847 – March 4, 1853 | | Redistricting |
| 6th | March 4, 1853 – March 4, 1863 | | Chairman of Committee on Ways and Means (1857–1859); retired, having enlisted during the American Civil War; later, 23rd Governor of Missouri (1877–1881) |
| John Finis Philips | Democratic | 7th | March 4, 1875 – March 4, 1877 | | |
| January 10, 1880 – March 4, 1881 | | Lost re-election; later, Commissioner of Missouri Supreme Court (1883–1885), judge for Kansas City Court of Appeals 1885–1888, judge for U.S. District Court for the Western District of Missouri (1888–1910) |
| William A. Pile | Republican | 1st | March 4, 1867 – March 4, 1869 | | Chairman of Committee on Expenditures in the Post Office Department (1867–1869); lost re-election; later, 8th Governor of New Mexico Territory (1869–1870) |
| Walter C. Ploeser | Republican | 12th | January 3, 1941 – January 3, 1949 | | Chairman of Select Committee on Small Business (1947–1949); lost re-election |
| Henry Moses Pollard | Republican | 10th | March 4, 1877 – March 4, 1879 | | Lost re-election |
| Gilchrist Porter | Whig | 2nd | March 4, 1851 – March 4, 1853 | | Redistricting; lost re-election |
| Opposition | March 4, 1855 – March 4, 1857 | | Chairman of Committee on Private Land Claims (1855–1857); later judge for circuit court (1866–1880) |
| Sterling Price | Democratic | At-Large | March 4, 1845 – August 12, 1846 | | Resigned for the Mexican–American War; later, 11th Governor of Missouri (1853–1857) and Confederate Major General |
| Thomas Lawson Price | Democratic | 5th | January 21, 1862 - March 4, 1863 | | Previously, 8th Lieutenant Governor of Missouri (1848–1853); lost re-election |
| William J. Randall | Democratic | 4th | March 3, 1959 – January 3, 1977 | | 1st Chairman of Committee on Aging (1975–1977); retired |
| John Henry Raney | Republican | 13th | March 4, 1895 – March 4, 1897 | | (possibly 15th); lost re-election |
| David Rea | Democratic | 9th | March 4, 1875 – March 4, 1879 | | Lost re-election |
| Albert L. Reeves, Jr. | Republican | 5th | 1947–1949 | | Lost re-election |
| John William Reid | Democratic | 5th | March 4, 1861 - August 3, 1861 | | Expelled for taking up arms against the Union |
| James Hugh Relfe | Democratic | At-Large | March 4, 1843 – March 4, 1847 | | Previously U.S. Marshal for the district of Missouri (1841) |
| Marion E. Rhodes | Republican | 13th | March 4, 1905 – March 4, 1907 | | Lost re-election |
| March 4, 1919 – March 4, 1923 | | Chairman of Committee on Mines and Mining (1921–1923); lost re-election |
| Theron Moses Rice | Greenback | 7th | March 4, 1881 – March 4, 1883 | | Retired |
| Sidney C. Roach | Republican | 8th | March 4, 1921 – March 4, 1925 | | Chairman of Committee on Expenditures in the Justice Department (1923–1925); lost re-election |
| Edward Robb | Democratic | 13th | March 4, 1897 – March 4, 1905 | | Lost re-election |
| James S. Rollins | Constitutional Unionist | 2nd | March 4, 1861 – March 4, 1863 | | Redistricting |
| Unionist | 9th | March 4, 1863 – March 4, 1865 | | |
| Milton A. Romjue | Democratic | 1st | March 4, 1917 – March 4, 1921 | | Lost re-election |
| March 4, 1923 – March 4, 1933 | | Redistricting |
| At-Large | March 4, 1933 – January 3, 1935 | | Redistricting |
| 1st | January 3, 1935 – January 3, 1943 | | Chairman of Committee on Post Office and Post Roads (1939–1943); lost re-election |
| Gideon Frank Rothwell | Democratic | 10th | March 4, 1879 – March 4, 1881 | | Lost primary |
| Thomas L. Rubey | Democratic | 16th | March 4, 1911 – March 4, 1921 | | Previously 25th Lieutenant Governor of Missouri (1903–1905); lost re-election |
| March 4, 1923 – November 2, 1928 | | Died |
| William W. Rucker | Democratic | 9th | March 4, 1899 – March 4, 1923 | | Chairman of Committee on Election of the President, Vice President, and Representatives (1911–1919); lost re-election |
| James Edward Ruffin | Democratic | At-Large | March 4, 1933 – January 3, 1935 | | Redistricting; lost re-election |
| Joseph J. Russell | Democratic | 14th | March 4, 1907 – March 4, 1909 | | Lost re-election |
| March 4, 1911 – March 4, 1919 | | Retired |
| Samuel Locke Sawyer | Independent Democrat | 8th | March 4, 1879 – March 4, 1881 | | Retired |
| Max Schwabe | Republican | 2nd | January 3, 1943 – January 3, 1949 | | Lost re-election |
| John Scott | Delegate | Territory | August 6, 1816 – January 13, 1817 | | |
| August 4, 1817 – March 4, 1821 | | |
| Democratic-Republican | At-Large | August 10, 1821 – March 4, 1823 | | |
| Adams-Clay Democratic-Republican | March 4, 1823 – March 4, 1825 | | |
| Adams | March 4, 1825 – March 4, 1827 | | Chairman of Committee on Public Lands (1825–1827); lost re-election |
| John Guier Scott | Democratic | 3rd | December 7, 1863 – March 4, 1865 | | |
| Gustavus Sessinghaus | Republican | 3rd | March 2, 1883 - March 4, 1883 | | Contested election, seated (served 2 days); redistricting; lost re-election |
| Dorsey W. Shackleford | Democratic | 8th | August 29, 1899 – March 4, 1919 | | Chairman of Committee on Roads (1913–1919); lost primary |
| Joe Shannon | Democratic | 5th | March 4, 1931 – March 4, 1933 | | Redistricting |
| At-Large | March 4, 1933 – January 3, 1935 | | Redistricting |
| 5th | January 3, 1935 – January 3, 1943 | | Retired |
| Cassius M. Shartel | Republican | 15th | March 4, 1905 – March 4, 1907 | | Retired |
| Samuel A. Shelton | Republican | 16th | March 4, 1921 – March 4, 1923 | | Retired |
| Dewey Jackson Short | Republican | 14th | March 4, 1929 – March 4, 1931 | | Lost re-election |
| 7th | January 3, 1935 – January 3, 1957 | | Chairman of House Armed Services Committee (1953–1955); lost general |
| Leonard Henly Sims | Democratic | At-Large | March 4, 1845 – March 4, 1847 | | |
| Ike Skelton | Democratic | 4th | January 3, 1977 – January 3, 2011 | Lexington | Chairman of Armed Services Committee (2007–2011); lost general |
| Roger C. Slaughter | Democratic | 5th | January 3, 1943 – January 3, 1947 | | Lost primary |
| Jason T. Smith | Republican | 8th | June 4, 2013 – present | Salem | Incumbent |
| Madison Roswell Smith | Democratic | 13th | March 4, 1907 – March 4, 1909 | | Lost re-election |
| Edwin O. Stanard | Republican | 1st | March 4, 1873 – March 4, 1875 | | Previously, 14th Lieutenant Governor of Missouri (1869–1871); lost re-election |
| William Henry Stone | Democratic | 3rd March 4, 1873 – March 4, 1877 | | Chairman of Committee on Expenditures in the Post Office Department (1875–1877), Chairman of Committee on Manufactures (1875–1877); retired |
| William Joel Stone | Democratic | 12th | March 4, 1885 – March 4, 1891 | | Chairman of Committee on War Claims (1887–1889); retired; later, 28th Governor of Missouri (1893–1897) and U.S. Senator (1903–1918d) |
| John Hubler Stover | Republican | 5th | December 7, 1868 – March 4, 1869 | | Retired |
| John B. Sullivan | Democratic | 11th | January 3, 1941 – January 3, 1943 | | Lost re-election; husband of Leonor Sullivan |
| January 3, 1945 – January 3, 1947 | | Lost re-election; husband of Leonor Sullivan |
| January 3, 1949 - January 29, 1951 | | Died; husband of Leonor Sullivan |
| Leonor Sullivan | Democratic | 3rd | January 3, 1953 – January 3, 1977 | | Chairwoman of Committee on Merchant Marine and Fisheries (1973–1977); widow of John B. Sullivan; retired |
| James W. Symington | Democratic | 2nd | January 3, 1969 – January 3, 1977 | | Ran for U.S. Senate (lost primary) |
| Jim Talent | Republican | 2nd | January 3, 1993 – January 3, 2001 | | Chairman of Committee on Small Business (1997–2001); ran for governor (lost); later, U.S. Senator (2002–2007) |
| Gene Taylor | Republican | 7th | January 3, 1973 – January 3, 1989 | | Retired |
| John Charles Tarsney | Democratic | 5th | March 4, 1889 – Fenruary 27, 1896 | | Chairman of Committee on Labor (1891–1893); election contested, unseated |
| John Plank Tracey | Republican | 7th | March 4, 1895 – March 4, 1897 | | Lost re-election |
| William M. Treloar | Republican | 9th | March 4, 1895 – March 4, 1897 | | Lost re-election |
| William T. Tyndall | Republican | 14th | March 4, 1905 – March 4, 1907 | | Lost re-election |
| Robert T. Van Horn | Republican | 6th | March 4, 1865 – March 4, 1871 | | Retired |
| 8th | March 4, 1881 – March 4, 1883 | | |
| 5th | February 27, 1896 – March 4, 1897 | | Contested election, seated; lost primary |
| Willard Duncan Vandiver | Democratic | 14th | March 4, 1897 – March 4, 1905 | | Retired |
| Harold Volkmer | Democratic | 9th | January 3, 1977 – January 3, 1997 | | Lost general |
| James Richard Waddill | Democratic | 6th | March 4, 1879 – March 4, 1881 | | Retired |
| William H. Wade | Republican | 13th | March 4, 1885 – March 4, 1891 | | Chairman of Committee on Labor (1889–1891); lost re-election |
| Ann Wagner | Republican | 2nd | January 3, 2013 – present | | Incumbent |
| George Chester Robinson Wagoner | Republican | 12th | February 26, 1903 - March 4, 1903 | | Contested election, seated (served 6 days) |
| James P. Walker | Democratic | 14th | March 4, 1887 – July 19, 1890 | | Died; had just been nominated to another term |
| William Warner | Republican | 5th | March 4, 1885 – March 4, 1889 | | Retired; later, district attorney for U.S. District Court for the Western District of Missouri (1882–1884), (1898), & (1902–1905); U.S. Senator (1905–1911) |
| John Welborn | Republican | 7th | March 4, 1905 – March 4, 1907 | | Lost re-election |
| Phil J. Welch | Democratic | 3rd | January 3, 1949 – January 3, 1953 | | Ran for governor (lost) |
| Erastus Wells | Democratic | 1st | March 4, 1869 – March 4, 1873 | | Redistricting |
| 2nd | March 4, 1873 – March 4, 1877 | | Lost re-election |
| March 4, 1879 – March 4, 1881 | | Retired |
| Alan Wheat | Democratic | 5th | January 3, 1983 – January 3, 1995 | | Ran for U.S. Senate (lost general) |
| Robert Henry Whitelaw | Democratic | 14th | November 4, 1890 – March 4, 1891 | | Retired |
| Clyde Williams | Democratic | 13th | March 4, 1927 – March 4, 1929 | | Lost re-election |
| March 4, 1931 – March 4, 1933 | | Redistricting |
| At-Large | March 4, 1933 – January 3, 1935 | | Redistricting |
| 8th | January 3, 1935 – January 3, 1943 | | Lost re-election |
| Robert Patterson Clark Wilson | Democratic | 4th | December 2, 1889 – March 4, 1893 | | Chairman of Committee on Pensions (1891–1893) |
| J. Scott Wolff | Democratic | 13th | March 4, 1923 – March 4, 1925 | | Lost re-election |
| Ernest E. Wood | Democratic | 12th | March 4, 1905 – June 23, 1906 | | Election contested, unseated |
| Reuben T. Wood | Democratic | At-large | March 4, 1933 – January 3, 1935 | | Chairman of Committee on War Claims (1939–1941); lost re-election |
| 6th | January 3, 1935 – January 3, 1941 | | Chairman of Committee on War Claims (1939–1941); lost re-election |
| Samuel H. Woodson | Know-nothing | 5th | March 4, 1857– March 4, 1861 | | Retired; later, judge for Missouri 24th Judicial Circuit Court (1875–1881d) |
| Robert A. Young | Democratic | 2nd | January 3, 1977 – January 3, 1987 | | Lost general |
| Orville Zimmerman | Democratic | 10th | January 3, 1935 – April 7, 1948 | | Died |