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_ |
|---|---|---|---|---|
| Bob Kasten | 1975–1979 | Wisconsin | Republican | 1942– |
| Robert Kastenmeier | 1959–1991 | Wisconsin | Democratic | 1924– |
| David S. Kaufman | 1846–1851 | Texas | Democratic | 1813–1851 |
| Edward Kavanagh | 1831–1835 | Maine | Democratic | 1795–1844 |
| Will Kirk Kaynor | 1929 | Massachusetts | Republican | 1884–1929 |
| Abraham Kazen | 1967–1985 | Texas | Democratic | 1919–1987 |
| John Kean | 1883–1885 , 1887–1889 | New Jersey | Republican | 1852–1914 |
| Robert Kean | 1939–1959 | New Jersey | Republican | 1893–1980 |
| Bernard W. Kearney | 1943–1959 | New York | Republican | 1889–1976 |
| Carroll D. Kearns | 1947–1963 | Pennsylvania | Republican | 1900–1976 |
| Charles Cyrus Kearns | 1915–1931 | Ohio | Republican | 1869–1931 |
| Edward Keating | 1913–1919 | Colorado | Democratic | 1875–1965 |
| Kenneth Keating | 1947–1959 | New York | Republican | 1900–1975 |
| William J. Keating | 1971–1974 | Ohio | Republican | 1927– |
| Elizabeth Kee | 1951–1965 | West Virginia | Democratic | 1895–1975 |