# List of former members of the United States House of Representatives (U)

This is a complete list of former members of the United States House of Representatives whose last names begin with the letter U.

## Number of years/terms representative/delegate has served

The number of years the representative/delegate has served in Congress indicates the number of terms the representative/delegate has. Note the representative/delegate can also serve non-consecutive terms if the representative/delegate loses election and wins re-election to the House.
* 2 years - 1 or 2 terms
* 4 years - 2 or 3 terms
* 6 years - 3 or 4 terms
* 8 years - 4 or 5 terms
* 10 years - 5 or 6 terms
* 12 years - 6 or 7 terms
* 14 years - 7 or 8 terms
* 16 years - 8 or 9 terms
* 18 years - 9 or 10 terms
* 20 years - 10 or 11 terms
* 22 years - 11 or 12 terms
* 24 years - 12 or 13 terms
* 26 years - 13 or 14 terms
* 28 years - 14 or 15 terms
* 30 years - 15 or 16 terms
* 32 years - 16 or 17 terms
* 34 years - 17 or 18 terms
* 36 years - 18 or 19 terms
* 38 years - 19 or 20 terms
* 40 years - 20 or 21 terms
* 42 years - 21 or 22 terms
* 44 years - 22 or 23 terms
* 46 years - 23 or 24 terms
* 48 years - 24 or 25 terms
* 50 years - 25 or 26 terms
* 52 years - 26 or 27 terms
* 54 years - 27 or 28 terms
* 56 years - 28 or 29 terms
* 58 years - 29 or 30 terms
| Representative/Delegate | Years | State/Territory | Party | Lifespan |
| Mark Udall | 1999–2009 | Colorado | Democratic | 1950–present |
| Mo Udall | 1961–1991 | Arizona | Democratic | 1922–1998 |
| Stewart Udall | 1955–1961 | Arizona | Democratic | 1920–2010 |
| Tom Udall | 1999–2009 | New Mexico | Democratic | 1948–present |
| Daniel Udree | 1813–1815 1820–1821 1822–1825 | Pennsylvania | Democratic-Republican | 1751–1828 |
| Al Ullman | 1957–1981 | Oregon | Democratic | 1914–1986 |
| William B. Umstead | 1933–1939 | North Carolina | Democratic | 1895–1954 |
| Charles L. Underhill | 1921–1933 | Massachusetts | Republican | 1867–1946 |
| Edwin S. Underhill | 1911–1915 | New York | Democratic | 1861–1929 |
| John Q. Underhill | 1899–1901 | New York | Democratic | 1848–1907 |
| Walter Underhill | 1849–1851 | New York | Whig | 1795–1866 |
| John William Henderson Underwood | 1859–1861 | Georgia | Democratic | 1816–1888 |
| Joseph R. Underwood | 1835–1843 | Kentucky | Whig | 1791–1876 |
| Mell G. Underwood | 1923–1936 | Ohio | Democratic | 1892–1972 |
| Oscar Underwood | 1895–1896 1897–1915 | Alabama | Democratic | 1862–1929 |
| Robert A. Underwood | 1993–2003 | Guam | Democratic | 1948–present |
| Thomas R. Underwood | 1949–1951 | Kentucky | Democratic | 1898–1956 |
| Warner Underwood | 1855–1859 | Kentucky | American | 1808–1872 |
| Jolene Unsoeld | 1989–1995 | Washington | Democratic | 1931–2021 |
| Jonathan T. Updegraff | 1879–1882 | Ohio | Republican | 1822–1882 |
| Thomas Updegraff | 1879–1883 1893–1899 | Iowa | Republican | 1834–1910 |
| Ralph E. Updike | 1925–1929 | Indiana | Republican | 1894–1953 |
| Charles Wentworth Upham | 1853–1855 | Massachusetts | Whig | 1802–1875 |
| George B. Upham | 1801–1803 | New Hampshire | Federalist | 1768–1848 |
| Jabez Upham | 1807–1810 | Massachusetts | Federalist | 1764–1811 |
| Nathaniel Upham | 1817–1823 | New Hampshire | Democratic-Republican | 1774–1829 |
| William David Upshaw | 1919–1927 | Georgia | Democratic | 1866–1952 |
| Charles Upson | 1863–1869 | Michigan | Republican | 1821–1885 |
| Christopher C. Upson | 1879–1883 | Texas | Democratic | 1829–1902 |
| William H. Upson | 1869–1873 | Ohio | Republican | 1823–1910 |
| Charles H. Upton | 1861–1862 | Virginia | Unionist | 1812–1877 |
| Fred Upton | 1987–2023 | Michigan | Republican | 1953–present |
| Milton Urner | 1879–1883 | Maryland | Republican | 1839–1926 |
| James B. Utt | 1953–1970 | California | Republican | 1899–1970 |
| George H. Utter | 1911–1912 | Rhode Island | Republican | 1854–1912 |
| Hubert Utterback | 1935–1937 | Iowa | Democratic | 1880–1942 |
| John G. Utterback | 1933–1935 | Maine | Democratic | 1872–1955 |