List of former members of the United States House of Representatives (K) Number of years/terms representative/delegate has served Number of years/terms representative/delegate has served

| Representative | Years | State_ | Party | Lifespan_ |
|---|---|---|---|---|
| Josiah Kerr | 1900–1901 | Maryland | Republican | 1861–1920 |
| Michael C. Kerr | 1865–1873 , 1875–1876 | Indiana | Democratic | 1827–1876 |
| Winfield S. Kerr | 1895–1901 | Ohio | Republican | 1852–1917 |
| James Kerrigan | 1861–1863 | New York | Independent Democrat | 1828–1899 |
| John Kershaw | 1813–1815 | South Carolina | Democratic-Republican | 1765–1829 |
| Charles J. Kersten | 1947–1949 , 1951–1955 | Wisconsin | Republican | 1902–1972 |
| John C. Ketcham | 1921–1933 | Michigan | Republican | 1873–1941 |
| John H. Ketcham | 1865–1873 , 1877–1893 , 1897–1906 | New York | Republican | 1832–1906 |
| Winthrop Welles Ketcham | 1875–1876 | Pennsylvania | Republican | 1820–1879 |
| William M. Ketchum | 1973–1978 | California | Republican | 1921–1978 |
| William Kettner | 1913–1921 | California | Democratic | 1864–1930 |
| John A. Key | 1913–1919 | Ohio | Democratic | 1871–1954 |
| Philip Key | 1791–1793 | Maryland | Pro-Administration | 1750–1820 |
| Philip Barton Key | 1807–1813 | Maryland | Federalist | 1757–1815 |