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 Kronmiller | 1909–1911 | Maryland | Republican | 1858–1928 |
| Bob Krueger | 1975–1979 | Texas | Democratic | 1935– |
| Otto Krueger | 1953–1959 | North Dakota | Republican | 1890–1963 |
| Edward H. Kruse | 1949–1951 | Indiana | Democratic | 1918–2000 |
| Randy Kuhl | 2005–2009 | New York | Republican | 1943– |
| Joseph Henry Kuhns | 1851–1853 | Pennsylvania | Whig | 1800–1883 |
| Monroe Henry Kulp | 1895–1899 | Pennsylvania | Republican | 1858–1911 |
| Jacob Michael Kunkel | 1857–1861 | Maryland | Democratic | 1822–1870 |
| John C. Kunkel | 1939–1951 , 1961–1966 | Pennsylvania | Republican | 1898–1970 |
| John Christian Kunkel | 1855–1857 | Pennsylvania | Oppositionist | 1816–1870 |
| John Christian Kunkel | 1857–1859 | Pennsylvania | Republican | 1816–1870 |
| Stanley H. Kunz | 1921–1931 , 1932–1933 | Illinois | Democratic | 1864–1946 |
| Theodore R. Kupferman | 1966–1969 | New York | Republican | 1920–2003 |
| Jacob Banks Kurtz | 1923–1935 | Pennsylvania | Republican | 1867–1960 |