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_ |
|---|---|---|---|---|
| William Henry Kurtz | 1851–1855 | Pennsylvania | Democratic | 1804–1868 |
| Gustav Küstermann | 1907–1911 | Wisconsin | Republican | 1850–1919 |
| Andrew J. Kuykendall | 1865–1867 | Illinois | Republican | 1815–1891 |
| Dan Kuykendall | 1967–1975 | Tennessee | Republican | 1924–2008 |
| Steven T. Kuykendall | 1999–2001 | California | Republican | 1947– |
| Ole J. Kvale | 1923–1929 | Minnesota | Farmer-Labor | 1869–1929 |
| Paul John Kvale | 1929–1939 | Minnesota | Farmer-Labor | 1896–1960 |
| John Henry Kyl | 1959–1965 , 1967–1973 | Iowa | Republican | 1919–2002 |
| Jon Kyl | 1987–1995 | Arizona | Republican | 1942– |
| John Kyle | 1891–1897 | Mississippi | Democratic | 1851–1913 |
| Thomas B. Kyle | 1901–1905 | Ohio | Republican | 1856–1915 |
| Peter N. Kyros | 1967–1975 | Maine | Democratic | 1925–2012 |