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_ |
|---|---|---|---|---|
| John Weinland Killinger | 1859–1863 , 1871–1875 , 1877–1881 | Pennsylvania | Republican | 1824–1896 |
| Carolyn Cheeks Kilpatrick | 1997–2011 | Michigan | Democratic | 1945– |
| Mary Jo Kilroy | 2009–2011 | Ohio | Democratic | 1949– |
| Jay Kim | 1993–1999 | California | Republican | 1939– |
| Alanson M. Kimball | 1875–1877 | Wisconsin | Republican | 1827–1913 |
| Henry M. Kimball | 1935 | Michigan | Republican | 1878–1935 |
| William P. Kimball | 1907–1909 | Kentucky | Democratic | 1857–1926 |
| William Kimmel | 1877–1881 | Maryland | Democratic | 1812–1886 |
| John Kincaid | 1829–1831 | Kentucky | Democratic | 1791–1873 |
| David Hayes Kincheloe | 1915–1930 | Kentucky | Democratic | 1877–1950 |
| George J. Kindel | 1913–1915 | Colorado | Democratic | 1855–1930 |
| Tom Kindness | 1975–1987 | Ohio | Republican | 1929–2004 |
| John J. Kindred | 1911–1913 , 1921–1929 | New York | Democratic | 1864–1937 |
| Adam King | 1827–1833 | Pennsylvania | Democratic | 1783–1835 |
| Andrew King | 1871–1873 | Missouri | Democratic | 1812–1895 |