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_ |
|---|---|---|---|---|
| Stephen Wright Kellogg | 1869–1875 | Connecticut | Republican | 1822–1904 |
| William Kellogg | 1857–1863 | Illinois | Republican | 1814–1872 |
| William P. Kellogg | 1883–1885 | Louisiana | Republican | 1830–1918 |
| Edna F. Kelly | 1949–1969 | New York | Democratic | 1906–1997 |
| Edward A. Kelly | 1931–1943 , 1945–1947 | Illinois | Democratic | 1892–1969 |
| George B. Kelly | 1937–1939 | New York | Democratic | 1900–1971 |
| James Kelly | 1805–1809 | Pennsylvania | Federalist | 1760–1819 |
| John Kelly | 1855–1858 | New York | Democratic | 1822–1886 |
| Melville Clyde Kelly | 1913–1915 | Pennsylvania | Republican | 1883–1935 |
| Melville Clyde Kelly | 1917–1919 | Pennsylvania | Progressive | 1883–1935 |
| Melville Clyde Kelly | 1919–1935 | Pennsylvania | Republican | 1883–1935 |
| Richard Kelly | 1975–1981 | Florida | Republican | 1924–2005 |
| Sue W. Kelly | 1995–2007 | New York | Republican | 1936– |
| William H. Kelsey | 1855–1857 | New York | Oppositionist | 1812–1879 |