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

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

## 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 |
| Clinton Babbitt | 1891–1893 | Wisconsin | Democratic | 1831–1907 |
| Elijah Babbitt | 1859–1863 | Pennsylvania | Republican | 1795–1887 |
| Alfred Babcock | 1841–1843 | New York | Whig | 1805–1871 |
| Joseph W. Babcock | 1893–1907 | Wisconsin | Republican | 1850–1909 |
| Leander Babcock | 1851–1853 | New York | Democratic | 1811–1864 |
| William Babcock | 1831–1833 | New York | Anti-Masonic | 1785–1838 |
| John J. Babka | 1919–1921 | Ohio | Democratic | 1884–1937 |
| Joe Baca | 1999–2013 | California | Democratic | 1947–present |
| Jim Bacchus | 1991–1995 | Florida | Democratic | 1949–present |
| Isaac Bacharach | 1915–1937 | New Jersey | Republican | 1870–1956 |
| Reuben K. Bachman | 1879–1881 | Pennsylvania | Democratic | 1834–1911 |
| Carl G. Bachmann | 1925–1933 | West Virginia | Republican | 1890–1980 |
| Michele Bachmann | 2007–2015 | Minnesota | Republican | 1956–present |
| Spencer Bachus | 1993–2015 | Alabama | Republican | 1947–present |
| Ezekiel Bacon | 1807–1813 | Massachusetts | Democratic-Republican | 1776–1870 |
| Henry Bacon | 1886–1889 1891–1893 | New York | Democratic | 1846–1915 |
| John Bacon | 1801–1803 | Massachusetts | Democratic-Republican | 1738–1820 |
| Mark R. Bacon | 1917 | Michigan | Republican | 1852–1941 |
| Robert L. Bacon | 1923–1938 | New York | Republican | 1884–1938 |
| William J. Bacon | 1877–1879 | New York | Republican | 1803–1889 |
| De Witt C. Badger | 1903–1905 | Ohio | Democratic | 1858–1926 |
| Luther Badger | 1825–1827 | New York | National Republican | 1785–1868 |
| Robert Badham | 1977–1989 | California | Republican | 1929–2005 |
| Herman Badillo | 1971–1977 | New York | Democratic | 1929–2014 |
| George Baer Jr. | 1797–1801 1815–1817 | Maryland | Federalist | 1763–1834 |
| John M. Baer | 1917–1921 | North Dakota | Republican | 1886–1970 |
| Scotty Baesler | 1993–1999 | Kentucky | Democratic | 1941–present |
| Skip Bafalis | 1973–1983 | Florida | Republican | 1929–2023 |
| John C. Bagby | 1875–1877 | Illinois | Democratic | 1819–1896 |
| George A. Bagley | 1875–1879 | New York | Republican | 1826–1915 |
| John H. Bagley Jr. | 1875–1877 1883–1885 | New York | Democratic | 1832–1902 |
| Alexander H. Bailey | 1867–1871 | New York | Republican | 1817–1874 |
| Cleveland M. Bailey | 1945–1947 1949–1963 | West Virginia | Democratic | 1886–1965 |
| Jack Bailey | 1851–1853 | Georgia | States Rights | 1812–1897 |
| Jack Bailey | 1853–1855 | Georgia | Democratic | 1812–1897 |
| Donald A. Bailey | 1979–1983 | Pennsylvania | Democratic | 1945–2020 |
| Goldsmith Bailey | 1861–1862 | Massachusetts | Republican | 1823–1862 |
| Jeremiah Bailey | 1835–1837 | Maine | National Republican | 1773–1853 |
| John Bailey | 1824–1825 | Massachusetts | Democratic-Republican | 1786–1835 |
| John Bailey | 1825–1831 | Massachusetts | National Republican | 1786–1835 |
| John Mosher Bailey | 1878–1881 | New York | Republican | 1838–1916 |
| Joseph Bailey | 1861–1865 | Pennsylvania | Democratic | 1810–1885 |
| Joseph W. Bailey | 1891–1901 | Texas | Democratic | 1862–1929 |
| Joseph Weldon Bailey Jr. | 1933–1935 | Texas | Democratic | 1892–1943 |
| Ralph E. Bailey | 1925–1927 | Missouri | Republican | 1878–1948 |
| Theodorus Bailey | 1793–1795 | New York | Anti-Administration | 1758–1828 |
| Theodorus Bailey | 1795–1797 1799–1801 1801–1803 | New York | Democratic-Republican | 1758–1828 |
| Warren W. Bailey | 1913–1917 | Pennsylvania | Democratic | 1855–1928 |
| Wendell Bailey | 1981–1983 | Missouri | Republican | 1940–present |
| Willis J. Bailey | 1899–1901 | Kansas | Republican | 1854–1932 |
| Brian Baird | 1999–2011 | Washington | Democratic | 1956–present |
| Joseph E. Baird | 1929–1931 | Ohio | Republican | 1865–1942 |
| Samuel T. Baird | 1897–1899 | Louisiana | Democratic | 1861–1899 |
| Caleb Baker | 1819–1821 | New York | Democratic-Republican | 1762–1849 |
| Charles S. Baker | 1885–1891 | New York | Republican | 1839–1902 |
| Edward Dickinson Baker | 1845–1847 1849–1851 | Illinois | Whig | 1811–1861 |
| Ezra Baker | 1815–1817 | New Jersey | Democratic-Republican | c. 1765 – after 1818 |
| Henry M. Baker | 1893–1897 | New Hampshire | Republican | 1841–1912 |
| Howard Baker Sr. | 1951–1964 | Tennessee | Republican | 1902–1964 |
| Irene Baker | 1964–1965 | Tennessee | Republican | 1901–1994 |
| J. Thompson Baker | 1913–1915 | New Jersey | Democratic | 1847–1919 |
| Jehu Baker | 1865–1869 1887–1889 | Illinois | Republican | 1822–1903 |
| Jehu Baker | 1897–1899 | Illinois | Democratic | 1822–1903 |
| John Baker | 1811–1813 | Virginia | Federalist | 1769–1823 |
| John Baker | 1875–1881 | Indiana | Republican | 1832–1915 |
| LaMar Baker | 1971–1975 | Tennessee | Republican | 1915–2003 |
| Osmyn Baker | 1840–1845 | Massachusetts | Whig | 1800–1875 |
| Richard Baker | 1987–2008 | Louisiana | Republican | 1948–present |
| Robert Baker | 1903–1905 | New York | Democratic | 1862–1943 |
| Stephen Baker | 1861–1863 | New York | Republican | 1819–1875 |
| William Baker | 1891–1897 | Kansas | Populist | 1831–1910 |
| William Benjamin Baker | 1895–1901 | Maryland | Republican | 1840–1911 |
| William H. Baker | 1875–1879 | New York | Republican | 1827–1911 |
| Bill Baker | 1993–1997 | California | Republican | 1940–present |
| Charles M. Bakewell | 1933–1935 | Connecticut | Republican | 1867–1957 |
| Claude I. Bakewell | 1947–1949 1951–1953 | Missouri | Republican | 1912–1987 |
| John Baldacci | 1995–2003 | Maine | Democratic | 1955–present |
| Howard M. Baldrige | 1931–1933 | Nebraska | Republican | 1894–1985 |
| Alvin Baldus | 1975–1981 | Wisconsin | Democratic | 1926–2017 |
| Abraham Baldwin | 1789–1795 | Georgia | Anti-Administration | 1754–1807 |
| Abraham Baldwin | 1795–1799 | Georgia | Democratic-Republican | 1754–1807 |
| Augustus C. Baldwin | 1863–1865 | Michigan | Democratic | 1817–1903 |
| Harry Streett Baldwin | 1943–1947 | Maryland | Democratic | 1894–1952 |
| Henry Baldwin | 1817–1822 | Pennsylvania | Democratic-Republican | 1780–1844 |
| Henry A. Baldwin | 1922–1923 | Hawaii | Republican | 1871–1946 |
| John Baldwin | 1825–1829 | Connecticut | National Republican | 1772–1850 |
| John D. Baldwin | 1863–1869 | Massachusetts | Republican | 1809–1883 |
| John F. Baldwin Jr. | 1955–1966 | California | Republican | 1915–1966 |
| Joseph C. Baldwin | 1941–1947 | New York | Republican | 1897–1957 |
| Melvin Baldwin | 1893–1895 | Minnesota | Democratic | 1838–1901 |
| Simeon Baldwin | 1803–1805 | Connecticut | Federalist | 1761–1851 |
| Tammy Baldwin | 1999–2013 | Wisconsin | Democratic | 1962–present |
| Edward Ball | 1853–1857 | Ohio | Independent Democrat | 1811–1872 |
| L. Heisler Ball | 1901–1903 | Delaware | Republican | 1861–1932 |
| Thomas H. Ball | 1897–1903 | Texas | Democratic | 1859–1944 |
| Thomas R. Ball | 1939–1941 | Connecticut | Republican | 1896–1943 |
| William Lee Ball | 1817–1824 | Virginia | Democratic-Republican | 1781–1824 |
| Frank Ballance | 2003–2004 | North Carolina | Democratic | 1942–2019 |
| Cass Ballenger | 1986–2005 | North Carolina | Republican | 1926–2015 |
| John Goff Ballentine | 1883–1887 | Tennessee | Democratic | 1825–1915 |
| Latimer W. Ballou | 1875–1881 | Rhode Island | Republican | 1812–1900 |
| William N. Baltz | 1913–1915 | Illinois | Democratic | 1860–1943 |
| Bert Bandstra | 1965–1967 | Iowa | Democratic | 1922–1995 |
| John H. Bankhead | 1887–1907 | Alabama | Democratic | 1842–1920 |
| Walter W. Bankhead | 1941 | Alabama | Democratic | 1897–1988 |
| William B. Bankhead | 1917–1940 | Alabama | Democratic | 1874–1940 |
| Jim Banks | 2017–2025 | Indiana | Republican | 1979–present |
| John Banks | 1831–1836 | Pennsylvania | Anti-Masonic | 1793–1864 |
| Linn Banks | 1838–1841 | Virginia | Democratic | 1784–1842 |
| Nathaniel P. Banks | 1853–1855 | Massachusetts | Democratic | 1816–1894 |
| Nathaniel P. Banks | 1855–1857 | Massachusetts | American | 1816–1894 |
| Nathaniel P. Banks | 1857 1865–1873 | Massachusetts | Republican | 1816–1894 |
| Nathaniel P. Banks | 1875–1877 | Massachusetts | Independent | 1816–1894 |
| Nathaniel P. Banks | 1877–1879 1889–1891 | Massachusetts | Republican | 1816–1894 |
| Henry B. Banning | 1873–1879 | Ohio | Democratic | 1836–1881 |
| Henry T. Bannon | 1905–1909 | Ohio | Republican | 1867–1950 |
| Parke M. Banta | 1947–1949 | Missouri | Republican | 1891–1970 |
| Hiram Barber Jr. | 1879–1881 | Illinois | Republican | 1835–1924 |
| Isaac A. Barber | 1897–1899 | Maryland | Republican | 1852–1909 |
| J. Allen Barber | 1871–1875 | Wisconsin | Republican | 1809–1881 |
| Laird Howard Barber | 1899–1901 | Pennsylvania | Democratic | 1848–1928 |
| Levi Barber | 1817–1819 1821–1823 | Ohio | National Republican | 1777–1833 |
| Noyes Barber | 1821–1825 | Connecticut | Democratic-Republican | 1781–1844 |
| Noyes Barber | 1825–1835 | Connecticut | National Republican | 1781–1844 |
| Ron Barber | 2012–2015 | Arizona | Democratic | 1945–present |
| Henry E. Barbour | 1919–1933 | California | Republican | 1877–1945 |
| John S. Barbour | 1823–1825 | Virginia | Democratic-Republican | 1790–1855 |
| John S. Barbour | 1825–1833 | Virginia | Democratic | 1790–1855 |
| John S. Barbour Jr. | 1881–1887 | Virginia | Democratic | 1820–1892 |
| Lucien Barbour | 1855–1857 | Indiana | Oppositionist | 1811–1880 |
| Philip P. Barbour | 1814–1825 | Virginia | Democratic-Republican | 1783–1841 |
| Philip P. Barbour | 1827–1830 | Virginia | Democratic | 1783–1841 |
| Peter W. Barca | 1993–1995 | Wisconsin | Democratic | 1955–present |
| Andrew J. Barchfeld | 1905–1917 | Pennsylvania | Republican | 1863–1922 |
| James Barcia | 1993–2003 | Michigan | Democratic | 1952–present |
| Charles Frederick Barclay | 1907–1911 | Pennsylvania | Republican | 1844–1914 |
| David Barclay | 1855–1857 | Pennsylvania | Democratic | 1823–1889 |
| David Bard | 1803–1813 | Pennsylvania | Democratic-Republican | 1744–1815 |
| Graham A. Barden | 1935–1961 | North Carolina | Democratic | 1896–1967 |
| John All Barham | 1895–1901 | California | Republican | 1843–1926 |
| Walter S. Baring Jr. | 1949–1953 1957–1973 | Nevada | Democratic | 1911–1975 |
| Abraham Andrews Barker | 1865–1867 | Pennsylvania | Republican | 1816–1898 |
| David Barker Jr. | 1827–1829 | New Hampshire | National Republican | 1797–1834 |
| Joseph Barker | 1805–1809 | Massachusetts | Democratic-Republican | 1751–1815 |
| Alben W. Barkley | 1913–1927 | Kentucky | Democratic | 1877–1956 |
| Ethelbert Barksdale | 1883–1887 | Mississippi | Democratic | 1824–1893 |
| William Barksdale | 1853–1861 | Mississippi | Democratic | 1821–1863 |
| Lou Barletta | 2011–2019 | Pennsylvania | Republican | 1956–present |
| Bradley Barlow | 1879–1881 | Vermont | Greenbacker | 1814–1889 |
| Charles A. Barlow | 1897–1899 | California | Populist | 1858–1927 |
| Stephen Barlow | 1827–1829 | Pennsylvania | Democratic | 1779–1845 |
| Thomas Barlow | 1993–1995 | Kentucky | Democratic | 1940–2017 |
| Daniel D. Barnard | 1827–1829 1839–1845 | New York | Whig | 1797–1861 |
| Doug Barnard Jr. | 1977–1993 | Georgia | Democratic | 1922–2018 |
| William O. Barnard | 1909–1911 | Indiana | Republican | 1852–1939 |
| Demas Barnes | 1867–1869 | New York | Democratic | 1827–1888 |
| George Barnes | 1885–1891 | Georgia | Democratic | 1833–1901 |
| James M. Barnes | 1939–1943 | Illinois | Democratic | 1899–1958 |
| Lyman E. Barnes | 1893–1895 | Wisconsin | Democratic | 1855–1904 |
| Michael D. Barnes | 1979–1987 | Maryland | Democratic | 1943–present |
| William Barnett | 1812–1815 | Georgia | Democratic-Republican | 1761–1832 |
| John Barney | 1825–1829 | Maryland | National Republican | 1785–1857 |
| Samuel S. Barney | 1895–1903 | Wisconsin | Republican | 1846–1919 |
| Henry A. Barnhart | 1908–1919 | Indiana | Democratic | 1858–1934 |
| Charles Augustus Barnitz | 1833–1835 | Pennsylvania | Anti-Masonic | 1780–1850 |
| William Barnum | 1867–1876 | Connecticut | Democratic | 1818–1889 |
| Robert Barnwell | 1791–1793 | South Carolina | Pro-Administration | 1761–1814 |
| Robert Woodward Barnwell | 1829–1831 | South Carolina | Democratic | 1801–1882 |
| Robert Woodward Barnwell | 1831–1833 | South Carolina | Nullifier | 1801–1882 |
| Bob Barr | 1995–2003 | Georgia | Republican | 1948–present |
| Joseph W. Barr | 1959–1961 | Indiana | Democratic | 1918–1996 |
| Samuel Fleming Barr | 1881–1885 | Pennsylvania | Republican | 1829–1919 |
| Thomas J. Barr | 1859–1861 | New York | Democratic | 1812–1881 |
| Granville Barrere | 1873–1875 | Illinois | Republican | 1829–1889 |
| Nelson Barrere | 1851–1853 | Ohio | Whig | 1808–1883 |
| John R. Barret | 1859–1860 1860–1861 | Missouri | Democratic | 1825–1903 |
| Bill Barrett | 1991–2001 | Nebraska | Republican | 1929–2016 |
| Frank A. Barrett | 1943–1950 | Wyoming | Republican | 1892–1962 |
| Gresham Barrett | 2003–2011 | South Carolina | Republican | 1961–present |
| Tom Barrett | 1993–2003 | Wisconsin | Democratic | 1953–present |
| William A. Barrett | 1945–1947 1949–1976 | Pennsylvania | Democratic | 1896–1976 |
| William Barrett | 1895–1899 | Massachusetts | Republican | 1858–1906 |
| Daniel Laurens Barringer | 1826–1833 | North Carolina | Democratic | 1788–1852 |
| Daniel Laurens Barringer | 1833–1835 | North Carolina | National Republican | 1788–1852 |
| Daniel Moreau Barringer | 1843–1849 | North Carolina | Whig | 1806–1873 |
| John Barrow | 2005–2015 | Georgia | Democratic | 1955–present |
| Washington Barrow | 1847–1849 | Tennessee | Whig | 1807–1866 |
| Samuel J. Barrows | 1897–1899 | Massachusetts | Republican | 1845–1909 |
| Frederick G. Barry | 1885–1889 | Mississippi | Democratic | 1845–1909 |
| Henry W. Barry | 1870–1875 | Mississippi | Republican | 1840–1875 |
| Robert R. Barry | 1959–1965 | New York | Republican | 1915–1988 |
| William B. Barry | 1935–1946 | New York | Democratic | 1902–1946 |
| William T. Barry | 1810–1811 | Kentucky | Democratic-Republican | 1784–1835 |
| William S. Barry | 1853–1855 | Mississippi | Democratic | 1821–1868 |
| Gamaliel H. Barstow | 1831–1833 | New York | Anti-Masonic | 1784–1865 |
| Gideon Barstow | 1821–1823 | Massachusetts | Democratic-Republican | 1783–1852 |
| Richard Bartholdt | 1893–1915 | Missouri | Republican | 1855–1932 |
| Horace F. Bartine | 1889–1893 | Nevada | Republican | 1848–1918 |
| Bailey Bartlett | 1797–1801 | Massachusetts | Federalist | 1750–1830 |
| Bob Bartlett | 1945–1959 | Alaska | Democratic | 1904–1968 |
| Charles L. Bartlett | 1895–1915 | Georgia | Democratic | 1853–1938 |
| Franklin Bartlett | 1893–1897 | New York | Democratic | 1847–1909 |
| George A. Bartlett | 1907–1911 | Nevada | Democratic | 1869–1951 |
| Ichabod Bartlett | 1823–1825 | New Hampshire | Democratic-Republican | 1786–1853 |
| Ichabod Bartlett | 1825–1829 | New Hampshire | National Republican | 1786–1853 |
| Josiah Bartlett Jr. | 1811–1813 | New Hampshire | Democratic-Republican | 1768–1838 |
| Roscoe Bartlett | 1993–2013 | Maryland | Republican | 1926–present |
| Steve Bartlett | 1983–1991 | Texas | Republican | 1947–present |
| Thomas Bartlett Jr. | 1851–1853 | Vermont | Democratic | 1808–1876 |
| Mordecai Bartley | 1823–1831 | Ohio | National Republican | 1783–1870 |
| Bruce Barton | 1937–1941 | New York | Republican | 1886–1967 |
| Joe Barton | 1985–2019 | Texas | Republican | 1949–present |
| Richard W. Barton | 1841–1843 | Virginia | Whig | 1800–1859 |
| Samuel Barton | 1835–1837 | New York | Democratic | 1785–1858 |
| Silas Reynolds Barton | 1913–1915 | Nebraska | Republican | 1872–1916 |
| William E. Barton | 1931–1933 | Missouri | Democratic | 1868–1955 |
| Charles Barwig | 1889–1895 | Wisconsin | Democratic | 1837–1912 |
| Coles Bashford | 1867–1869 | Arizona | Republican | 1816–1878 |
| Charles Bass | 1995–2007 2011–2013 | New Hampshire | Republican | 1952–present |
| Karen Bass | 2011–2022 | California | Democratic | 1953–present |
| Lyman K. Bass | 1873–1877 | New York | Republican | 1836–1889 |
| Perkins Bass | 1955–1963 | New Hampshire | Republican | 1912–2011 |
| Ross Bass | 1955–1964 | Tennessee | Democratic | 1918–1993 |
| Burwell Bassett | 1805–1813 1815–1819 1821–1825 | Virginia | Democratic-Republican | 1764–1841 |
| Burwell Bassett | 1825–1829 | Virginia | Democratic | 1764–1841 |
| Edward Bassett | 1903–1905 | New York | Democratic | 1863–1948 |
| Ephraim Bateman | 1815–1823 | New Jersey | Democratic-Republican | 1780–1829 |
| Herb Bateman | 1983–2000 | Virginia | Republican | 1928–2000 |
| Arthur L. Bates | 1901–1913 | Pennsylvania | Republican | 1859–1934 |
| Edward Bates | 1827–1829 | Missouri | National Republican | 1793–1869 |
| George J. Bates | 1937–1949 | Massachusetts | Republican | 1891–1949 |
| Isaac C. Bates | 1827–1835 | Massachusetts | National Republican | 1779–1845 |
| James Bates | 1831–1833 | Maine | Democratic | 1789–1882 |
| James Woodson Bates | 1819–1823 | Arkansas | None | 1788–1846 |
| Jim Bates | 1983–1991 | California | Democratic | 1941–present |
| Joe B. Bates | 1938–1953 | Kentucky | Democratic | 1893–1965 |
| William H. Bates | 1950–1969 | Massachusetts | Republican | 1917–1969 |
| Ellsworth Raymond Bathrick | 1911–1915 1917 | Ohio | Democratic | 1863–1917 |
| James F. Battin | 1961–1969 | Montana | Republican | 1925–1996 |
| Laurie C. Battle | 1947–1955 | Alabama | Democratic | 1912–2000 |
| Max Baucus | 1975–1978 | Montana | Democratic | 1941–present |
| Robert Bauman | 1973–1981 | Maryland | Republican | 1937–present |
| Albert David Baumhart Jr. | 1941–1942 1955–1961 | Ohio | Republican | 1908–2001 |
| Portus Baxter | 1861–1867 | Vermont | Republican | 1806–1868 |
| William V. Bay | 1849–1851 | Missouri | Democratic | 1818–1894 |
| James A. Bayard | 1797–1803 | Delaware | Federalist | 1767–1815 |
| Francis Baylies | 1821–1825 | Massachusetts | Federalist | 1783–1852 |
| Francis Baylies | 1825–1827 | Massachusetts | Democratic | 1783–1852 |
| William Baylies | 1809–1809 | Massachusetts | Federalist | 1776–1865 |
| William Baylies | 1813–1817 | Massachusetts | Federalist | 1776–1865 |
| William Baylies | 1833–1835 | Massachusetts | National Republican | 1776–1865 |
| R. E. B. Baylor | 1829–1831 | Alabama | Democratic | 1793–1874 |
| Thomas Bayly | 1817–1823 | Maryland | Federalist | 1775–1829 |
| Thomas H. Bayly | 1844–1856 | Virginia | Democratic | 1810–1856 |
| Thomas Monteagle Bayly | 1813–1815 | Virginia | Federalist | 1775–1834 |
| Thomas M. Bayne | 1877–1891 | Pennsylvania | Republican | 1836–1894 |
| Clifton B. Beach | 1895–1899 | Ohio | Republican | 1845–1902 |
| Lewis Beach | 1881–1886 | New York | Democratic | 1835–1886 |
| Samuel Beakes | 1913–1917 1917–1919 | Michigan | Democratic | 1861–1927 |
| Charles Lewis Beale | 1859–1861 | New York | Republican | 1824–1899 |
| James M. H. Beale | 1833–1837 1849–1853 | Virginia | Democratic | 1786–1866 |
| Joseph Grant Beale | 1907–1909 | Pennsylvania | Republican | 1839–1915 |
| Richard L. T. Beale | 1847–1849 1879–1881 | Virginia | Democratic | 1819–1893 |
| C. William Beales | 1915–1917 | Pennsylvania | Republican | 1877–1927 |
| J. Glenn Beall | 1943–1953 | Maryland | Republican | 1894–1971 |
| J. Glenn Beall Jr. | 1969–1971 | Maryland | Republican | 1927–2006 |
| James Andrew Beall | 1903–1915 | Texas | Democratic | 1866–1929 |
| Reasin Beall | 1813–1814 | Ohio | Democratic-Republican | 1769–1843 |
| Harry P. Beam | 1931–1942 | Illinois | Democratic | 1892–1967 |
| Fernando C. Beaman | 1861–1871 | Michigan | Republican | 1814–1882 |
| John V. Beamer | 1951–1959 | Indiana | Republican | 1896–1964 |
| Benning M. Bean | 1833–1837 | New Hampshire | Democratic | 1782–1866 |
| Curtis Coe Bean | 1885–1887 | Arizona | Republican | 1828–1904 |
| Melissa Bean | 2005–2011 | Illinois | Democratic | 1962–present |
| Edward Beard | 1975–1981 | Rhode Island | Democratic | 1940–2021 |
| Robin Beard | 1973–1983 | Tennessee | Republican | 1939–2007 |
| Samuel Beardsley | 1831–1836 1843–1844 | New York | Democratic | 1790–1860 |
| John Beatty | 1793–1795 | New Jersey | Pro-Administration | 1749–1826 |
| John Beatty | 1868–1873 | Ohio | Republican | 1828–1914 |
| William Beatty | 1837–1841 | Pennsylvania | Democratic | 1787–1851 |
| Martin Beaty | 1833–1835 | Kentucky | National Republican | 1784–1856 |
| Andrew Beaumont | 1833–1837 | Pennsylvania | Democratic | 1790–1853 |
| Bob Beauprez | 2003–2007 | Colorado | Republican | 1948–present |
| Xavier Becerra | 1993–2017 | California | Democratic | 1958–present |
| Erasmus W. Beck | 1872–1873 | Georgia | Democratic | 1833–1898 |
| James B. Beck | 1867–1875 | Kentucky | Democratic | 1822–1890 |
| James M. Beck | 1927–1934 | Pennsylvania | Republican | 1861–1936 |
| Joseph D. Beck | 1921–1929 | Wisconsin | Republican | 1866–1936 |
| Frank J. Becker | 1953–1965 | New York | Republican | 1899–1981 |
| William M. Beckner | 1894–1895 | Kentucky | Democratic | 1841–1910 |
| Charles D. Beckwith | 1889–1891 | New Jersey | Republican | 1838–1921 |
| Lindley Beckworth | 1939–1953 1957–1967 | Texas | Democratic | 1913–1984 |
| James Bede | 1903–1909 | Minnesota | Republican | 1856–1942 |
| Berkley Bedell | 1975–1987 | Iowa | Democratic | 1921–2019 |
| George M. Bedinger | 1803–1807 | Kentucky | Democratic-Republican | 1756–1843 |
| Henry Bedinger | 1845–1849 | Virginia | Democratic | 1812–1858 |
| Carlos Bee | 1919–1921 | Texas | Democratic | 1867–1932 |
| George M. Beebe | 1875–1879 | New York | Democratic | 1836–1927 |
| Philemon Beecher | 1817–1821 | Ohio | Federalist | 1776–1839 |
| Philemon Beecher | 1823–1829 | Ohio | National Republican | 1776–1839 |
| Carroll L. Beedy | 1921–1935 | Maine | Republican | 1880–1947 |
| Thomas Beekman | 1829–1831 | New York | National Republican | 1790–1870 |
| Joseph H. Beeman | 1891–1893 | Mississippi | Democratic | 1833–1909 |
| Ralph F. Beermann | 1961–1965 | Nebraska | Republican | 1912–1977 |
| Cyrus Beers | 1838–1839 | New York | Democratic | 1786–1850 |
| Edward M. Beers | 1923–1932 | Pennsylvania | Republican | 1877–1932 |
| Henry White Beeson | 1841–1843 | Pennsylvania | Democratic | 1791–1863 |
| James T. Begg | 1919–1929 | Ohio | Republican | 1877–1963 |
| Nick Begich | 1971–1972 | Alaska | Democratic | 1932–1972 |
| Josiah Begole | 1873–1875 | Michigan | Republican | 1815–1896 |
| Jacob A. Beidler | 1901–1907 | Ohio | Republican | 1852–1912 |
| Anthony Beilenson | 1977–1997 | California | Democratic | 1932–2017 |
| Andrew Beirne | 1837–1841 | Virginia | Democratic | 1771–1845 |
| Alfred F. Beiter | 1933–1939 1941–1943 | New York | Democratic | 1894–1974 |
| Hiram Belcher | 1847–1849 | Maine | Whig | 1790–1857 |
| Nathan Belcher | 1853–1855 | Connecticut | Democratic | 1813–1891 |
| Page Belcher | 1951–1973 | Oklahoma | Republican | 1899–1980 |
| George O. Belden | 1827–1829 | New York | Democratic | 1797–1833 |
| James J. Belden | 1887–1895 1897–1899 | New York | Republican | 1825–1904 |
| James B. Belford | 1876–1877 1879–1885 | Colorado | Republican | 1837–1910 |
| Joseph M. Belford | 1897–1899 | New York | Republican | 1852–1917 |
| Charles E. Belknap | 1889–1891 1891–1893 | Michigan | Republican | 1846–1929 |
| Hugh R. Belknap | 1895–1899 | Illinois | Republican | 1860–1901 |
| Alphonzo E. Bell Jr. | 1961–1977 | California | Republican | 1914–2004 |
| C. Jasper Bell | 1935–1949 | Missouri | Democratic | 1885–1978 |
| Charles K. Bell | 1893–1897 | Texas | Democratic | 1853–1913 |
| Charles W. Bell | 1913–1915 | California | Progressive Republican | 1857–1927 |
| Chris Bell | 2003–2005 | Texas | Democratic | 1959–present |
| Hiram Bell | 1851–1853 | Ohio | Whig | 1808–1855 |
| Hiram Parks Bell | 1873–1875 1877–1879 | Georgia | Democratic | 1827–1907 |
| James Martin Bell | 1833–1835 | Ohio | Democratic | 1796–1849 |
| John Bell | 1827–1835 | Tennessee | Democratic | 1796–1869 |
| John Bell | 1835–1837 | Tennessee | National Republican | 1796–1869 |
| John Bell | 1837–1841 | Tennessee | Whig | 1796–1869 |
| John Bell | 1851 | Ohio | Whig | 1796–1869 |
| John Calhoun Bell | 1893–1903 | Colorado | Populist | 1851–1933 |
| John J. Bell | 1955–1957 | Texas | Democratic | 1910–1963 |
| Joshua Fry Bell | 1845–1847 | Kentucky | Whig | 1811–1870 |
| Peter Hansborough Bell | 1853–1857 | Texas | Democratic | 1810/2–1898 |
| Samuel Newell Bell | 1871–1873 1875–1877 | New Hampshire | Democratic | 1829–1889 |
| Theodore Arlington Bell | 1903–1905 | California | Democratic | 1872–1922 |
| Thomas M. Bell | 1905–1931 | Georgia | Democratic | 1861–1941 |
| John D. Bellamy | 1899–1903 | North Carolina | Democratic | 1854–1942 |
| Joseph Bellinger | 1817–1819 | South Carolina | Democratic-Republican | 1773–1830 |
| Oliver Belmont | 1901–1903 | New York | Democratic | 1858–1908 |
| Perry Belmont | 1881–1889 | New York | Democratic | 1851–1947 |
| James E. Belser | 1843–1845 | Alabama | Democratic | 1805–1859 |
| Frank E. Beltzhoover | 1879–1883 1891–1895 | Pennsylvania | Democratic | 1841–1923 |
| George H. Bender | 1939–1949 1951–1954 | Ohio | Republican | 1896–1961 |
| Charles B. Benedict | 1877–1879 | New York | Democratic | 1828–1901 |
| Cleve Benedict | 1981–1983 | West Virginia | Republican | 1935–present |
| Henry S. Benedict | 1916–1917 | California | Republican | 1878–1930 |
| John S. Benham | 1919–1923 | Indiana | Republican | 1863–1935 |
| Dan Benishek | 2011–2017 | Michigan | Republican | 1952–2021 |
| Jaime Benítez Rexach | 1973–1977 | Puerto Rico | Popular Democratic | 1908–2001 |
| Adam Benjamin Jr. | 1977–1982 | Indiana | Democratic | 1935–1982 |
| John F. Benjamin | 1865–1871 | Missouri | Republican | 1817–1877 |
| George J. Benner | 1897–1899 | Pennsylvania | Democratic | 1859–1930 |
| Augustus W. Bennet | 1945–1947 | New York | Republican | 1897–1983 |
| Benjamin Bennet | 1815–1819 | New Jersey | Democratic-Republican | 1764–1840 |
| Hiram Pitt Bennet | 1861–1865 | Colorado | Republican | 1826–1914 |
| William Stiles Bennet | 1905–1911 1915–1917 | New York | Republican | 1870–1962 |
| Charles E. Bennett | 1949–1993 | Florida | Democratic | 1910–2003 |
| Charles G. Bennett | 1895–1899 | New York | Republican | 1863–1914 |
| David S. Bennett | 1869–1871 | New York | Republican | 1811–1894 |
| Granville G. Bennett | 1879–1881 | Dakota | Republican | 1833–1910 |
| Hendley S. Bennett | 1855–1857 | Mississippi | Democratic | 1807–1891 |
| Henry Bennett | 1849–1855 | New York | Whig | 1808–1868 |
| Henry Bennett | 1855–1857 | New York | Oppositionist | 1808–1868 |
| Henry Bennett | 1857–1859 | New York | Republican | 1808–1868 |
| John B. Bennett | 1943–1945 1947–1964 | Michigan | Republican | 1904–1964 |
| Joseph B. Bennett | 1905–1911 | Kentucky | Republican | 1859–1923 |
| Marion T. Bennett | 1943–1949 | Missouri | Republican | 1914–2000 |
| Philip A. Bennett | 1941–1942 | Missouri | Republican | 1881–1942 |
| Risden Tyler Bennett | 1883–1887 | North Carolina | Democratic | 1840–1913 |
| Thomas W. Bennett | 1875–1876 | Idaho | Independent | 1831–1893 |
| Allan Benny | 1903–1905 | New Jersey | Democratic | 1867–1942 |
| Carville Benson | 1918–1921 | Maryland | Democratic | 1872–1929 |
| Egbert Benson | 1789–1793 1813 | New York | Federalist | 1746–1833 |
| Samuel P. Benson | 1853–1855 | Maine | Whig | 1804–1876 |
| Samuel P. Benson | 1855–1857 | Maine | Oppositionist | 1804–1876 |
| Kerry Bentivolio | 2013–2015 | Michigan | Republican | 1951–present |
| Alvin Morell Bentley | 1953–1961 | Michigan | Republican | 1918–1969 |
| Helen Delich Bentley | 1985–1995 | Maryland | Republican | 1923–2016 |
| Henry Wilbur Bentley | 1891–1893 | New York | Democratic | 1838–1907 |
| Charles S. Benton | 1843–1847 | New York | Democratic | 1810–1882 |
| Jacob Benton | 1867–1871 | New Hampshire | Republican | 1814–1892 |
| Lemuel Benton | 1793–1795 | South Carolina | Anti-Administration | 1754–1818 |
| Lemuel Benton | 1795–1799 | South Carolina | Democratic-Republican | 1754–1818 |
| Maecenas E. Benton | 1897–1905 | Missouri | Democratic | 1848–1924 |
| Thomas Hart Benton | 1853–1855 | Missouri | Democratic | 1782–1858 |
| Ken Bentsen | 1995–2003 | Texas | Democratic | 1959–present |
| Lloyd Bentsen | 1948–1955 | Texas | Democratic | 1921–2006 |
| Doug Bereuter | 1979–2004 | Nebraska | Republican | 1939–present |
| Rick Berg | 2011–2013 | North Dakota | Republican | 1959–present |
| Christopher A. Bergen | 1889–1893 | New Jersey | Republican | 1841–1905 |
| John T. Bergen | 1831–1833 | New York | Democratic | 1786–1855 |
| Teunis G. Bergen | 1865–1867 | New York | Democratic | 1806–1881 |
| Victor L. Berger | 1911–1913 1923–1929 | Wisconsin | Socialist | 1860–1929 |
| Robert Bergland | 1971–1977 | Minnesota | Democratic-Farmer-Labor | 1928–2018 |
| Shelley Berkley | 1999–2013 | Nevada | Democratic | 1951–present |
| William M. Berlin | 1933–1937 | Pennsylvania | Democratic | 1880–1962 |
| Howard Berman | 1983–2013 | California | Democratic | 1941–present |
| John Bernard | 1937–1939 | Minnesota | Farmer-Labor | 1893–1983 |
| John Milton Bernhisel | 1851–1859 1861–1863 | Utah | None | 1799–1881 |
| Albert S. Berry | 1893–1901 | Kentucky | Democratic | 1836–1908 |
| Campbell Polson Berry | 1879–1883 | California | Democratic | 1834–1901 |
| E. Y. Berry | 1951–1971 | South Dakota | Republican | 1902–1999 |
| John Berry | 1873–1875 | Ohio | Democratic | 1833–1879 |
| Marion Berry | 1997–2011 | Arkansas | Democratic | 1942–2023 |
| Earl Hanley Beshlin | 1917–1919 | Pennsylvania | Democratic | 1870–1971 |
| Ed Bethune | 1979–1985 | Arkansas | Republican | 1935–present |
| Lauchlin Bethune | 1831–1833 | North Carolina | Democratic | 1785–1874 |
| Marion Bethune | 1870–1871 | Georgia | Republican | 1816–1895 |
| Silas Betton | 1803–1807 | New Hampshire | Federalist | 1768–1822 |
| Jackson Edward Betts | 1951–1973 | Ohio | Republican | 1904–1993 |
| Samuel Betts | 1815–1817 | New York | Democratic–Republican | 1786–1868 |
| John Lourie Beveridge | 1871–1873 | Illinois | Republican | 1824–1910 |
| Tom Bevill | 1967–1997 | Alabama | Democratic | 1921–2005 |
| Mario Biaggi | 1969–1988 | New York | Democratic | 1917–2015 |
| William W. Bibb | 1807–1813 | Georgia | Democratic-Republican | 1781–1820 |
| Thomas Marshal Bibighaus | 1851–1853 | Pennsylvania | Whig | 1817–1853 |
| Bennet Bicknell | 1837–1839 | New York | Democratic | 1781–1841 |
| George A. Bicknell | 1877–1881 | Indiana | Democratic | 1815–1891 |
| Charles John Biddle | 1861–1863 | Pennsylvania | Democratic | 1819–1873 |
| John Biddle | 1829–1831 | Michigan | None | 1792–1859 |
| Joseph Franklin Biddle | 1932–1933 | Pennsylvania | Republican | 1871–1936 |
| Richard Biddle | 1837–1840 | Pennsylvania | Anti-Masonic | 1796–1847 |
| Benjamin A. Bidlack | 1841–1845 | Pennsylvania | Democratic | 1804–1849 |
| Barnabas Bidwell | 1805–1807 | Massachusetts | Democratic-Republican | 1763–1833 |
| John Bidwell | 1865–1867 | California | Republican | 1819–1900 |
| Andrew Biemiller | 1945–1947 1949–1951 | Wisconsin | Democratic | 1906–1982 |
| Fred Biermann | 1933–1939 | Iowa | Democratic | 1884–1968 |
| James S. Biery | 1873–1875 | Pennsylvania | Republican | 1839–1904 |
| Edward G. Biester Jr. | 1967–1977 | Pennsylvania | Republican | 1931–present |
| John S. Bigby | 1871–1873 | Georgia | Republican | 1832–1898 |
| Abijah Bigelow | 1810–1815 | Massachusetts | Federalist | 1775–1860 |
| Herbert S. Bigelow | 1937–1939 | Ohio | Democratic | 1870–1951 |
| Lewis Bigelow | 1821–1823 | Massachusetts | Federalist | 1785–1838 |
| Judy Biggert | 1999–2013 | Illinois | Republican | 1937–present |
| Asa Biggs | 1845–1847 | North Carolina | Democratic | 1811–1878 |
| Benjamin T. Biggs | 1869–1873 | Delaware | Democratic | 1821–1893 |
| Marion Biggs | 1887–1891 | California | Democratic | 1823–1910 |
| Brian Bilbray | 1995–2001 2006–2013 | California | Republican | 1951–present |
| James Bilbray | 1987–1995 | Nevada | Democratic | 1938–2021 |
| Michael Bilirakis | 1983–2007 | Florida | Republican | 1930–present |
| Charles Billinghurst | 1855–1857 | Wisconsin | Oppositionist | 1818–1865 |
| Charles Billinghurst | 1857–1859 | Wisconsin | Republican | 1818–1865 |
| Alexander Billmeyer | 1902–1903 | Pennsylvania | Democratic | 1841–1924 |
| Charles Binderup | 1935–1939 | Nebraska | Democratic | 1873–1950 |
| Thomas Bines | 1814–1815 | New Jersey | Democratic-Republican | died 1826 |
| Henry H. Bingham | 1879–1912 | Pennsylvania | Republican | 1841–1912 |
| John Bingham | 1855–1863 1865–1873 | Ohio | Republican | 1815–1900 |
| Jonathan B. Bingham | 1965–1983 | New York | Democratic | 1914–1986 |
| Kinsley S. Bingham | 1847–1851 | Michigan | Democratic | 1808–1861 |
| Horace Binney | 1833–1835 | Pennsylvania | National Republican | 1780–1875 |
| William F. Birch | 1918–1919 | New Jersey | Republican | 1870–1946 |
| John Bird | 1799–1801 | New York | Federalist | 1768–1806 |
| John T. Bird | 1869–1873 | New Jersey | Democratic | 1829–1911 |
| Richard Ely Bird | 1921–1923 | Kansas | Republican | 1878–1955 |
| Ausburn Birdsall | 1847–1849 | New York | Democratic | 1814–1903 |
| Benjamin P. Birdsall | 1903–1909 | Iowa | Republican | 1858–1917 |
| James Birdsall | 1815–1817 | New York | Democratic–Republican | 1783–1856 |
| Samuel Birdsall | 1837–1839 | New York | Democratic | 1791–1872 |
| Victory Birdseye | 1815–1817 | New York | Democratic–Republican | 1782–1853 |
| Victory Birdseye | 1841–1843 | New York | Whig | 1782–1853 |
| Horatio Bisbee Jr. | 1877–1879 1881 1882–1885 | Florida | Republican | 1839–1916 |
| C. W. Bishop | 1941–1955 | Illinois | Republican | 1890–1971 |
| Dan Bishop | 2019–2025 | North Carolina | Republican | 1964–present |
| James Bishop | 1855–1857 | New Jersey | Oppositionist | 1816–1895 |
| Mike Bishop | 2015–2019 | Michigan | Republican | 1967–present |
| Phanuel Bishop | 1799–1807 | Massachusetts | Democratic-Republican | 1739–1812 |
| Rob Bishop | 2003–2021 | Utah | Republican | 1951–present |
| Roswell P. Bishop | 1895–1907 | Michigan | Republican | 1843–1920 |
| Tim Bishop | 2003–2015 | New York | Democratic | 1950–present |
| William D. Bishop | 1857–1859 | Connecticut | Democratic | 1827–1904 |
| William Henry Bissell | 1849–1853 | Illinois | Democratic | 1811–1860 |
| William Henry Bissell | 1853–1855 | Illinois | Independent Democrat | 1811–1860 |
| Harris J. Bixler | 1921–1927 | Pennsylvania | Republican | 1870–1941 |
| Diane Black | 2011–2019 | Tennessee | Republican | 1951–present |
| Edward J. Black | 1839–1841 | Georgia | Whig | 1806–1846 |
| Edward J. Black | 1842–1845 | Georgia | Democratic | 1806–1846 |
| Eugene Black | 1915–1929 | Texas | Democratic | 1879–1975 |
| Frank S. Black | 1895–1897 | New York | Republican | 1853–1913 |
| George Robison Black | 1881–1883 | Georgia | Democratic | 1835–1886 |
| Henry Black | 1841 | Pennsylvania | Whig | 1783–1841 |
| James Black | 1836–1837 1843–1847 | Pennsylvania | Democratic | 1793–1872 |
| James A. Black | 1843–1848 | South Carolina | Democratic | 1793–1848 |
| James C. C. Black | 1893–1895 1895–1897 | Georgia | Democratic | 1842–1928 |
| John C. Black | 1893–1895 | Illinois | Democratic | 1839–1915 |
| Loring M. Black Jr. | 1923–1935 | New York | Democratic | 1886–1956 |
| Benjamin B. Blackburn | 1967–1975 | Georgia | Republican | 1927–2024 |
| E. Spencer Blackburn | 1901–1903 1905–1907 | North Carolina | Republican | 1868–1912 |
| J. C. S. Blackburn | 1875–1885 | Kentucky | Democratic | 1838–1918 |
| Marsha Blackburn | 2003–2019 | Tennessee | Republican | 1952–present |
| Robert E. Lee Blackburn | 1929–1931 | Kentucky | Republican | 1870–1935 |
| W. Jasper Blackburn | 1868–1869 | Louisiana | Republican | 1820–1899 |
| William Blackledge | 1803–1809 1811–1813 | North Carolina | Democratic-Republican | 1767–1828 |
| William Salter Blackledge | 1821–1823 | North Carolina | Democratic-Republican | 1793–1856 |
| Esbon Blackmar | 1848–1849 | New York | Whig | 1805–1857 |
| Fred L. Blackmon | 1911–1921 | Alabama | Democratic | 1873–1921 |
| William W. Blackney | 1935–1937 1939–1953 | Michigan | Republican | 1876–1963 |
| Julius W. Blackwell | 1839–1841 1843–1845 | Tennessee | Democratic | c. 1797 – after 1845 |
| Lucien Blackwell | 1991–1995 | Pennsylvania | Democratic | 1931–2003 |
| Rod Blagojevich | 1997–2003 | Illinois | Democratic | 1956–present |
| James G. Blaine | 1863–1876 | Maine | Republican | 1830–1893 |
| Austin Blair | 1867–1873 | Michigan | Republican | 1818–1894 |
| Bernard Blair | 1841–1843 | New York | Whig | 1801–1880 |
| Francis Preston Blair Jr. | 1857–1859 1860 1861–1862 | Missouri | Republican | 1821–1875 |
| Francis Preston Blair Jr. | 1863–1864 | Missouri | Unconditional Unionist | 1821–1875 |
| Henry W. Blair | 1875–1879 1893–1895 | New Hampshire | Republican | 1834–1920 |
| Jacob B. Blair | 1861–1863 | Virginia | Unionist | 1821–1901 |
| Jacob B. Blair | 1863–1865 | West Virginia | Unconditional Unionist | 1821–1901 |
| James Blair | 1821–1822 | South Carolina | Democratic-Republican | 1786–1834 |
| James Blair | 1829–1834 | South Carolina | Democratic | 1786–1834 |
| James G. Blair | 1871–1873 | Missouri | Liberal Republican | 1825–1904 |
| John Blair | 1823–1825 | Tennessee | Democratic-Republican | 1790–1863 |
| John Blair | 1825–1835 | Tennessee | Democratic | 1790–1863 |
| Samuel Steel Blair | 1859–1863 | Pennsylvania | Republican | 1821–1890 |
| Daniel Blaisdell | 1809–1811 | New Hampshire | Federalist | 1762–1833 |
| Harrison G. O. Blake | 1859–1863 | Ohio | Republican | 1818–1876 |
| John Blake Jr. | 1805–1809 | New York | Democratic–Republican | 1762–1826 |
| John L. Blake | 1879–1881 | New Jersey | Republican | 1831–1899 |
| Thomas H. Blake | 1827–1829 | Indiana | National Republican | 1792–1849 |
| Albert Blakeney | 1901–1903 1921–1923 | Maryland | Republican | 1850–1924 |
| George W. Blanchard | 1933–1935 | Wisconsin | Republican | 1884–1964 |
| James J. Blanchard | 1975–1983 | Michigan | Democratic | 1942–present |
| John Blanchard | 1845–1849 | Pennsylvania | Whig | 1787–1849 |
| Newton C. Blanchard | 1881–1894 | Louisiana | Democratic | 1849–1922 |
| Oscar E. Bland | 1917–1923 | Indiana | Republican | 1877–1951 |
| Richard P. Bland | 1873–1895 1897–1899 | Missouri | Democratic | 1835–1899 |
| S. Otis Bland | 1918–1950 | Virginia | Democratic | 1872–1950 |
| Theodorick Bland | 1789–1790 | Virginia | Anti-Administration | 1742–1790 |
| William T. Bland | 1919–1921 | Missouri | Democratic | 1861–1928 |
| Ray Blanton | 1967–1973 | Tennessee | Democratic | 1930–1996 |
| Thomas L. Blanton | 1917–1929 1930–1937 | Texas | Democratic | 1872–1957 |
| John Blatnik | 1947–1974 | Minnesota | Democratic-Farmer-Labor | 1911–1991 |
| Vicente T. Blaz | 1985–1993 | Guam | Republican | 1928–2014 |
| Orrin Dubbs Bleakley | 1917 | Pennsylvania | Republican | 1854–1927 |
| Harmanus Bleecker | 1811–1813 | New York | Federalist | 1779–1849 |
| Thomas J. Bliley Jr. | 1981–2001 | Virginia | Republican | 1932–2023 |
| Aaron T. Bliss | 1889–1891 | Michigan | Republican | 1837–1906 |
| Archibald M. Bliss | 1875–1883 1885–1889 | New York | Democratic | 1838–1923 |
| George Bliss | 1853–1855 1863–1865 | Ohio | Democratic | 1813–1868 |
| Philemon Bliss | 1855–1859 | Ohio | Republican | 1813–1889 |
| Iris Faircloth Blitch | 1955–1963 | Georgia | Democratic | 1912–1993 |
| Timothy Bloodworth | 1790–1791 | North Carolina | Anti-Administration | 1736–1814 |
| Isaac Bloom | 1803 | New York | Independent | 1748–1803 |
| Sol Bloom | 1923–1949 | New York | Democratic | 1870–1949 |
| Joseph Bloomfield | 1817–1821 | New Jersey | Democratic-Republican | 1753–1823 |
| Mike Blouin | 1975–1979 | Iowa | Democratic | 1945–present |
| James Henderson Blount | 1873–1893 | Georgia | Democratic | 1837–1903 |
| Thomas Blount | 1793–1795 | North Carolina | Anti-Administration | 1759–1812 |
| Thomas Blount | 1795–1799 1805–1809 1811–1812 | North Carolina | Democratic-Republican | 1759–1812 |
| William Grainger Blount | 1815–1819 | Tennessee | Democratic-Republican | 1784–1827 |
| Henry Taylor Blow | 1863–1865 | Missouri | Unconditional Unionist | 1817–1875 |
| Henry Taylor Blow | 1865–1867 | Missouri | Republican | 1817–1875 |
| Richard W. Blue | 1895–1897 | Kansas | Republican | 1841–1907 |
| Rod Blum | 2015–2019 | Iowa | Republican | 1955–present |
| Earl Blumenauer | 1996–2025 | Oregon | Democratic | 1948–present |
| Roy Blunt | 1997–2011 | Missouri | Republican | 1950–present |
| Lisa Blunt Rochester | 2017–2025 | Delaware | Democratic | 1962–present |
| Peter Blute | 1993–1997 | Massachusetts | Republican | 1956–present |
| William W. Boardman | 1840–1843 | Connecticut | Whig | 1794–1871 |
| Alexander Boarman | 1872–1873 | Louisiana | Liberal Republican | 1839–1916 |
| Charles J. Boatner | 1889–1896 1896–1897 | Louisiana | Democratic | 1849–1903 |
| John Boccieri | 2009–2011 | Ohio | Democratic | 1969–present |
| Abraham Bockee | 1829–1831 1833–1837 | New York | Democratic | 1784–1865 |
| Thomas S. Bocock | 1847–1861 | Virginia | Democratic | 1815–1891 |
| Andrew Boden | 1817–1821 | Pennsylvania | Democratic-Republican | died 1835 |
| Robert N. Bodine | 1897–1899 | Missouri | Democratic | 1837–1914 |
| Charles Bodle | 1833–1835 | New York | Democratic | 1787–1835 |
| Sherwood Boehlert | 1983–2007 | New York | Republican | 1936–2021 |
| John W. Boehne | 1909–1913 | Indiana | Democratic | 1856–1946 |
| John W. Boehne Jr. | 1931–1943 | Indiana | Democratic | 1895–1973 |
| John Boehner | 1991–2015 | Ohio | Republican | 1949–present |
| Haldor Boen | 1893–1895 | Minnesota | Populist | 1851–1912 |
| Hale Boggs | 1941–1943 1947–1973 | Louisiana | Democratic | 1914–1972 |
| J. Caleb Boggs | 1947–1953 | Delaware | Republican | 1909–1993 |
| Lindy Boggs | 1973–1991 | Louisiana | Democratic | 1916–2013 |
| Frank P. Bohn | 1927–1933 | Michigan | Republican | 1866–1944 |
| William D. Boies | 1919–1929 | Iowa | Republican | 1857–1932 |
| Gerald J. Boileau | 1931–1935 | Wisconsin | Republican | 1900–1981 |
| Gerald J. Boileau | 1935–1939 | Wisconsin | Progressive | 1900–1981 |
| David A. Bokee | 1849–1851 | New York | Whig | 1805–1860 |
| Edward Boland | 1953–1989 | Massachusetts | Democratic | 1911–2001 |
| Patrick J. Boland | 1931–1942 | Pennsylvania | Democratic | 1880–1942 |
| Veronica Grace Boland | 1942–1943 | Pennsylvania | Democratic | 1899–1982 |
| Thomas Boles | 1868–1871 1872–1873 | Arkansas | Republican | 1837–1905 |
| Stephen Bolles | 1939–1941 | Wisconsin | Republican | 1866–1941 |
| Richard W. Bolling | 1949–1983 | Missouri | Democratic | 1916–1991 |
| Chester C. Bolton | 1929–1937 1939 | Ohio | Republican | 1882–1939 |
| Frances P. Bolton | 1940–1969 | Ohio | Republican | 1885–1977 |
| Oliver P. Bolton | 1953–1957 1963–1965 | Ohio | Republican | 1917–1972 |
| William P. Bolton | 1949–1951 | Maryland | Democratic | 1885–1964 |
| Charles G. Bond | 1921–1923 | New York | Republican | 1877–1974 |
| Shadrach Bond | 1812–1813 | Illinois | Independent | 1773–1832 |
| William K. Bond | 1835–1841 | Ohio | Whig | 1792–1864 |
| Bill Boner | 1979–1987 | Tennessee | Democratic | 1945–present |
| Milledge Luke Bonham | 1857–1860 | South Carolina | Democratic | 1813–1890 |
| Henry Bonilla | 1993–2007 | Texas | Republican | 1954–present |
| Edward Bonin | 1953–1955 | Pennsylvania | Republican | 1904–1990 |
| David Bonior | 1977–2003 | Michigan | Democratic | 1945–present |
| Don Bonker | 1975–1989 | Washington | Democratic | 1937–2023 |
| Herbert Covington Bonner | 1940–1965 | North Carolina | Democratic | 1891–1965 |
| Jo Bonner | 2003–2013 | Alabama | Republican | 1959–present |
| Mary Bono | 1998–2013 | California | Republican | 1961–present |
| Sonny Bono | 1995–1998 | California | Republican | 1935–1998 |
| Robert W. Bonynge | 1904–1909 | Colorado | Republican | 1863–1939 |
| Azariah Boody | 1853 | New York | Whig | 1815–1885 |
| David A. Boody | 1891 | New York | Democratic | 1837–1930 |
| Charles F. Booher | 1889 1907–1921 | Missouri | Democratic | 1848–1921 |
| George Booker | 1870–1871 | Virginia | Conservative | 1821–1883 |
| Ratliff Boon | 1825–1827 1829–1839 | Indiana | Democratic | 1781–1844 |
| Andrew Boone | 1875–1879 | Kentucky | Democratic | 1831–1886 |
| Walter Booth | 1849–1851 | Connecticut | Free Soiler | 1791–1870 |
| Melvin M. Boothman | 1887–1891 | Ohio | Republican | 1846–1904 |
| William S. Booze | 1897–1899 | Maryland | Republican | 1862–1933 |
| John Boozman | 2001–2011 | Arkansas | Republican | 1950–present |
| Charles M. Borchers | 1913–1915 | Illinois | Democratic | 1869–1946 |
| Madeleine Bordallo | 2003–2019 | Guam | Democratic | 1933–present |
| Nathaniel B. Borden | 1835–1839 | Massachusetts | Democratic | 1801–1865 |
| Nathaniel B. Borden | 1841–1843 | Massachusetts | Whig | 1801–1865 |
| Vincent Boreing | 1899–1903 | Kentucky | Republican | 1839–1903 |
| Dan Boren | 2005–2013 | Oklahoma | Democratic | 1973–present |
| Lyle Boren | 1937–1947 | Oklahoma | Democratic | 1909–1992 |
| Charles Borland Jr. | 1821–1823 | New York | Democratic–Republican | 1786–1852 |
| William P. Borland | 1909–1919 | Missouri | Democratic | 1867–1919 |
| Robert Borski | 1983–2003 | Pennsylvania | Democratic | 1948–present |
| Peter I. Borst | 1829–1831 | New York | Democratic | 1797–1848 |
| Albert H. Bosch | 1953–1960 | New York | Republican | 1908–2005 |
| Douglas H. Bosco | 1983–1991 | California | Democratic | 1946–present |
| Reva Beck Bosone | 1949–1953 | Utah | Democratic | 1895–1983 |
| John Linscom Boss Jr. | 1815–1819 | Rhode Island | Federalist | 1780–1819 |
| Pierre Bossier | 1843–1844 | Louisiana | Democratic | 1797–1844 |
| Leonard Boswell | 1997–2013 | Iowa | Democratic | 1934–2018 |
| Alexander Boteler | 1859–1861 | Virginia | Oppositionist | 1815–1892 |
| Jeremiah D. Botkin | 1897–1899 | Kansas | Populist | 1849–1921 |
| John Botts | 1839–1843 1847–1849 | Virginia | Whig | 1802–1869 |
| Rick Boucher | 1983–2011 | Virginia | Democratic | 1946–present |
| Gabriel Bouck | 1877–1881 | Wisconsin | Democratic | 1828–1904 |
| Joseph Bouck | 1831–1833 | New York | Democratic | 1788–1858 |
| Thomas Boude | 1801–1803 | Pennsylvania | Federalist | 1752–1822 |
| Elias Boudinot | 1789–1795 | New Jersey | Pro-Administration | 1740–1821 |
| James Bouldin | 1834–1839 | Virginia | Democratic | 1792–1854 |
| Thomas Bouldin | 1829–1834 | Virginia | Democratic | 1781–1834 |
| John Edward Bouligny | 1859–1861 | Louisiana | American | 1824–1864 |
| Beau Boulter | 1985–1989 | Texas | Republican | 1942–present |
| Franklin Bound | 1885–1889 | Pennsylvania | Republican | 1829–1910 |
| Carolyn Bourdeaux | 2021–2023 | Georgia | Democratic | 1970–present |
| Benjamin Bourne | 1790–1795 | Rhode Island | Pro-Administration | 1755–1808 |
| Benjamin Bourne | 1795–1796 | Rhode Island | Federalist | 1755–1808 |
| Shearjashub Bourne | 1791–1795 | Massachusetts | Pro-Administration | 1746–1806 |
| Charles Boustany | 2005–2017 | Louisiana | Republican | 1956–present |
| Henry Sherman Boutell | 1897–1911 | Illinois | Republican | 1856–1926 |
| Charles A. Boutelle | 1883–1901 | Maine | Republican | 1839–1901 |
| George S. Boutwell | 1863–1869 | Massachusetts | Republican | 1818–1905 |
| Matthias J. Bovee | 1835–1837 | New York | Democratic | 1793–1872 |
| Frank T. Bow | 1951–1972 | Ohio | Republican | 1901–1972 |
| George E. Bowden | 1887–1891 | Virginia | Republican | 1852–1908 |
| Stanley E. Bowdle | 1913–1915 | Ohio | Democratic | 1868–1919 |
| Franklin Welsh Bowdon | 1846–1851 | Alabama | Democratic | 1817–1857 |
| Christopher C. Bowen | 1868–1871 | South Carolina | Republican | 1832–1880 |
| David R. Bowen | 1973–1983 | Mississippi | Democratic | 1932–present |
| Henry Bowen | 1883–1885 | Virginia | Readjuster | 1841–1915 |
| Henry Bowen | 1887–1889 | Virginia | Republican | 1841–1915 |
| John Henry Bowen | 1813–1815 | Tennessee | Democratic-Republican | 1780–1822 |
| Rees Bowen | 1873–1875 | Virginia | Democratic | 1809–1879 |
| Gustavus M. Bower | 1843–1845 | Missouri | Democratic | 1790–1864 |
| William H. Bower | 1893–1895 | North Carolina | Democratic | 1850–1910 |
| Eaton J. Bowers | 1903–1911 | Mississippi | Democratic | 1865–1939 |
| George Meade Bowers | 1916–1923 | West Virginia | Republican | 1863–1925 |
| John M. Bowers | 1813 | New York | Federalist | 1772–1846 |
| William W. Bowers | 1891–1897 | California | Republican | 1834–1917 |
| Justin De Witt Bowersock | 1899–1907 | Kansas | Republican | 1842–1922 |
| Richard Bowie | 1849–1853 | Maryland | Whig | 1807–1881 |
| Sydney J. Bowie | 1901–1907 | Alabama | Democratic | 1865–1928 |
| Thomas Fielder Bowie | 1855–1859 | Maryland | Democratic | 1808–1869 |
| Walter Bowie | 1802–1805 | Maryland | Democratic-Republican | 1748–1810 |
| James B. Bowler | 1953–1957 | Illinois | Democratic | 1875–1957 |
| Chester Bowles | 1959–1961 | Connecticut | Democratic | 1901–1986 |
| Henry L. Bowles | 1925–1929 | Massachusetts | Republican | 1866–1932 |
| James B. Bowlin | 1843–1851 | Missouri | Democratic | 1804–1874 |
| William B. Bowling | 1920–1928 | Alabama | Democratic | 1870–1946 |
| Charles Calvin Bowman | 1911–1912 | Pennsylvania | Republican | 1852–1941 |
| Frank Llewellyn Bowman | 1925–1933 | West Virginia | Republican | 1879–1936 |
| Jamaal Bowman | 2021–2025 | New York | Democratic | 1976–present |
| Selwyn Z. Bowman | 1879–1883 | Massachusetts | Republican | 1840–1928 |
| Thomas Bowman | 1891–1893 | Iowa | Democratic | 1848–1917 |
| Obadiah Bowne | 1851–1853 | New York | Whig | 1822–1874 |
| Samuel S. Bowne | 1841–1843 | New York | Democratic | 1800–1865 |
| John C. Box | 1919–1931 | Texas | Democratic | 1871–1941 |
| Barbara Boxer | 1983–1993 | California | Democratic | 1940–present |
| William H. Boyce | 1923–1925 | Delaware | Democratic | 1855–1942 |
| William W. Boyce | 1853–1860 | South Carolina | Democratic | 1818–1890 |
| Adam Boyd | 1803–1805 1808–1813 | New Jersey | Democratic-Republican | 1746–1835 |
| Alexander Boyd | 1813–1815 | New York | Federalist | 1764–1857 |
| Allen Boyd | 1997–2011 | Florida | Democratic | 1945–present |
| John Frank Boyd | 1907–1909 | Nebraska | Republican | 1853–1945 |
| John H. Boyd | 1851–1853 | New York | Whig | 1799–1868 |
| Linn Boyd | 1835–1837 1839–1855 | Kentucky | Democratic | 1800–1859 |
| Sempronius H. Boyd | 1863–1865 | Missouri | Unconditional Unionist | 1828–1894 |
| Sempronius H. Boyd | 1869–1871 | Missouri | Republican | 1828–1894 |
| Thomas A. Boyd | 1877–1881 | Illinois | Republican | 1830–1897 |
| Nancy Boyda | 2007–2009 | Kansas | Democratic | 1955–present |
| Nathaniel Boyden | 1847–1849 | North Carolina | Whig | 1796–1873 |
| Nathaniel Boyden | 1868–1869 | North Carolina | Conservative | 1796–1873 |
| Benjamin Markley Boyer | 1865–1869 | Pennsylvania | Democratic | 1823–1887 |
| Lewis L. Boyer | 1937–1939 | Illinois | Democratic | 1886–1944 |
| Frank W. Boykin | 1935–1963 | Alabama | Democratic | 1885–1969 |
| John J. Boylan | 1923–1938 | New York | Democratic | 1878–1938 |
| Charles A. Boyle | 1955–1959 | Illinois | Democratic | 1907–1959 |
| Charles Edmund Boyle | 1883–1887 | Pennsylvania | Democratic | 1836–1888 |
| John Boyle | 1803–1809 | Kentucky | Democratic-Republican | 1774–1835 |
| Reese Bowen Brabson | 1859–1861 | Tennessee | Oppositionist | 1817–1863 |
| Jonathan Brace | 1798–1800 | Connecticut | Federalist | 1754–1837 |
| Henry Marie Brackenridge | 1840–1841 | Pennsylvania | Whig | 1786–1871 |
| George Bradbury | 1813–1817 | Massachusetts | Federalist | 1770–1823 |
| Theophilus Bradbury | 1795–1797 | Massachusetts | Federalist | 1739–1803 |
| John Brademas | 1959–1981 | Indiana | Democratic | 1927–2016 |
| Allen Alexander Bradford | 1865–1867 1869–1871 | Colorado | Republican | 1815–1888 |
| Taul Bradford | 1875–1877 | Alabama | Democratic | 1835–1883 |
| Edward Bradley | 1847 | Michigan | Democratic | 1808–1847 |
| Fred Bradley | 1939–1947 | Michigan | Republican | 1898–1947 |
| Jeb Bradley | 2003–2007 | New Hampshire | Republican | 1952–present |
| Michael J. Bradley | 1937–1947 | Pennsylvania | Democratic | 1897–1979 |
| Nathan B. Bradley | 1873–1877 | Michigan | Republican | 1831–1906 |
| Thomas J. Bradley | 1897–1901 | New York | Democratic | 1870–1901 |
| Thomas W. Bradley | 1903–1913 | New York | Republican | 1844–1920 |
| William C. Bradley | 1813–1815 1823–1825 | Vermont | Democratic-Republican | 1782–1867 |
| William C. Bradley | 1825–1827 | Vermont | National Republican | 1782–1867 |
| Willis W. Bradley | 1947–1949 | California | Republican | 1884–1954 |
| Samuel Carey Bradshaw | 1855–1857 | Pennsylvania | Oppositionist | 1809–1872 |
| Bob Brady | 1998–2019 | Pennsylvania | Democratic | 1945–present |
| James Dennis Brady | 1885–1887 | Virginia | Republican | 1843–1900 |
| Jasper E. Brady | 1847–1849 | Pennsylvania | Whig | 1797–1871 |
| Kevin Brady | 1997–2023 | Texas | Republican | 1955–present |
| Edward S. Bragg | 1877–1883 1885–1887 | Wisconsin | Democratic | 1827–1912 |
| John Bragg | 1851–1853 | Alabama | Democratic | 1806–1878 |
| Samuel Myron Brainerd | 1883–1885 | Pennsylvania | Republican | 1842–1898 |
| Bruce Braley | 2007–2015 | Iowa | Democratic | 1957–present |
| Ernest K. Bramblett | 1947–1955 | California | Republican | 1901–1966 |
| John Branch | 1831–1833 | North Carolina | Democratic | 1782–1863 |
| Lawrence O'Bryan Branch | 1855–1861 | North Carolina | Democratic | 1820–1862 |
| William A. B. Branch | 1891–1895 | North Carolina | Democratic | 1847–1910 |
| Charles Brand | 1923–1933 | Ohio | Republican | 1871–1966 |
| Charles H. Brand | 1917–1933 | Georgia | Democratic | 1861–1933 |
| Augustus Brandegee | 1863–1867 | Connecticut | Republican | 1828–1904 |
| Frank B. Brandegee | 1902–1905 | Connecticut | Republican | 1864–1924 |
| William G. Brantley | 1897–1913 | Georgia | Democratic | 1860–1934 |
| Frank J. Brasco | 1967–1975 | New York | Democratic | 1932–1998 |
| Dave Brat | 2014–2019 | Virginia | Republican | 1964–present |
| John Bratton | 1884–1885 | South Carolina | Democratic | 1831–1898 |
| Robert F. Brattan | 1893–1894 | Maryland | Democratic | 1845–1894 |
| William H. Brawley | 1891–1894 | South Carolina | Democratic | 1841–1916 |
| Elliott M. Braxton | 1871–1873 | Virginia | Democratic | 1823–1891 |
| William G. Bray | 1951–1975 | Indiana | Republican | 1903–1979 |
| William D. Brayton | 1857–1861 | Rhode Island | Republican | 1815–1887 |
| John Breaux | 1972–1987 | Louisiana | Democratic | 1944–present |
| Phanor Breazeale | 1899–1905 | Louisiana | Democratic | 1858–1934 |
| Daniel Breck | 1849–1851 | Kentucky | Whig | 1788–1871 |
| Samuel Breck | 1823–1825 | Pennsylvania | Federalist | 1771–1862 |
| Clifton R. Breckinridge | 1883–1890 1890–1894 | Arkansas | Democratic | 1846–1932 |
| James Breckinridge | 1809–1817 | Virginia | Federalist | 1763–1833 |
| James D. Breckinridge | 1821–1823 | Kentucky | Democratic-Republican | 1781–1849 |
| John B. Breckinridge | 1973–1979 | Kentucky | Democratic | 1913–1979 |
| John C. Breckinridge | 1851–1855 | Kentucky | Democratic | 1821–1875 |
| William Campbell Preston Breckinridge | 1885–1895 | Kentucky | Democratic | 1837–1904 |
| J. Floyd Breeding | 1957–1963 | Kansas | Democratic | 1901–1977 |
| Edward G. Breen | 1949–1951 | Ohio | Democratic | 1908–1991 |
| Walter E. Brehm | 1943–1953 | Ohio | Republican | 1892–1971 |
| Edward Breitung | 1883–1885 | Michigan | Republican | 1831–1887 |
| Robert G. Bremner | 1913–1914 | New Jersey | Democratic | 1874–1914 |
| Francis Brengle | 1843–1845 | Maryland | Whig | 1807–1846 |
| Joseph E. Brennan | 1987–1991 | Maine | Democratic | 1934–2024 |
| Martin A. Brennan | 1933–1937 | Illinois | Democratic | 1879–1941 |
| Vincent M. Brennan | 1921–1923 | Michigan | Republican | 1890–1959 |
| John Lewis Brenner | 1897–1901 | Ohio | Democratic | 1832–1906 |
| Richard Brent | 1795–1799 1801–1803 | Virginia | Democratic-Republican | 1757–1814 |
| William L. Brent | 1823–1825 | Louisiana | Democratic-Republican | 1784–1848 |
| William L. Brent | 1825–1829 | Louisiana | National Republican | 1784–1848 |
| Lorenzo Brentano | 1877–1879 | Illinois | Republican | 1813–1891 |
| Samuel Brenton | 1851–1853 | Indiana | Whig | 1810–1857 |
| Samuel Brenton | 1855–1857 | Indiana | Oppositionist | 1810–1857 |
| Samuel Brenton | 1857 | Indiana | Republican | 1810–1857 |
| Thomas Hurley Brents | 1879–1885 | Washington | Republican | 1840–1916 |
| John L. Bretz | 1891–1895 | Indiana | Democratic | 1852–1920 |
| Joseph Brevard | 1819–1821 | South Carolina | Democratic-Republican | 1766–1821 |
| Francis B. Brewer | 1883–1885 | New York | Republican | 1820–1892 |
| J. Hart Brewer | 1881–1885 | New Jersey | Republican | 1844–1900 |
| Mark S. Brewer | 1877–1881 1887–1891 | Michigan | Republican | 1837–1901 |
| Willis Brewer | 1897–1901 | Alabama | Democratic | 1844–1912 |
| Daniel Brewster | 1959–1963 | Maryland | Democratic | 1923–2007 |
| David P. Brewster | 1839–1843 | New York | Democratic | 1801–1876 |
| Henry C. Brewster | 1895–1899 | New York | Republican | 1845–1928 |
| Owen Brewster | 1935–1941 | Maine | Republican | 1888–1961 |
| Bill Brewster | 1991–1997 | Oklahoma | Democratic | 1941–2022 |
| Abraham L. Brick | 1899–1908 | Indiana | Republican | 1860–1908 |
| George H. Brickner | 1889–1895 | Wisconsin | Democratic | 1834–1904 |
| Jim Bridenstine | 2013–2018 | Oklahoma | Republican | 1975–present |
| George Washington Bridges | 1861–1863 | Tennessee | Unionist | 1825–1873 |
| Samuel A. Bridges | 1848–1849 1853–1855 1877–1879 | Pennsylvania | Democratic | 1802–1884 |
| Clay Stone Briggs | 1919–1933 | Texas | Democratic | 1876–1933 |
| George Briggs | 1849–1853 1859–1861 | New York | Whig | 1805–1869 |
| George N. Briggs | 1831–1837 | Massachusetts | National Republican | 1796–1861 |
| George N. Briggs | 1837–1843 | Massachusetts | Whig | 1796–1861 |
| James F. Briggs | 1877–1883 | New Hampshire | Republican | 1827–1905 |
| Elbert S. Brigham | 1925–1931 | Vermont | Republican | 1877–1962 |
| Elijah Brigham | 1811–1816 | Massachusetts | Federalist | 1751–1816 |
| Lewis A. Brigham | 1879–1881 | New Jersey | Republican | 1831–1885 |
| Bobby Bright | 2009–2011 | Alabama | Democratic | 1952–present |
| John M. Bright | 1871–1881 | Tennessee | Democratic | 1817–1911 |
| Anthony Brindisi | 2019–2021 | New York | Democratic | 1978–present |
| Henry R. Brinkerhoff | 1843–1844 | Ohio | Democratic | 1787–1844 |
| Jacob Brinkerhoff | 1843–1847 | Ohio | Democratic | 1810–1880 |
| Jack Brinkley | 1967–1983 | Georgia | Democratic | 1930–2019 |
| Samuel M. Brinson | 1919–1922 | North Carolina | Democratic | 1870–1922 |
| John Brisbin | 1851 | Pennsylvania | Democratic | 1818–1880 |
| Francis Bristow | 1854–1855 | Kentucky | Whig | 1804–1864 |
| Francis Bristow | 1859–1861 | Kentucky | Oppositionist | 1804–1864 |
| Henry Bristow | 1901–1903 | New York | Republican | 1840–1906 |
| James Jefferson Britt | 1915–1917 1919 | North Carolina | Republican | 1861–1939 |
| Charles Robin Britt | 1983–1985 | North Carolina | Democratic | 1942–present |
| Frederick A. Britten | 1913–1935 | Illinois | Republican | 1871–1946 |
| James Broadhead | 1883–1885 | Missouri | Democratic | 1819–1898 |
| Bill Brock | 1963–1971 | Tennessee | Republican | 1930–2021 |
| Lawrence Brock | 1959–1961 | Nebraska | Democratic | 1906–1968 |
| William H. Brockenbrough | 1846–1847 | Florida | Democratic | 1812–1850 |
| Franklin Brockson | 1913–1915 | Delaware | Democratic | 1865–1942 |
| John H. Brockway | 1839–1843 | Connecticut | Whig | 1801–1870 |
| Andrew R. Brodbeck | 1913–1915 1917–1919 | Pennsylvania | Democratic | 1860–1937 |
| Case Broderick | 1891–1899 | Kansas | Republican | 1839–1920 |
| Joseph Davis Brodhead | 1907–1909 | Pennsylvania | Democratic | 1859–1920 |
| John Brodhead | 1829–1833 | New Hampshire | Democratic | 1770–1838 |
| John C. Brodhead | 1831–1833 1837–1839 | New York | Democratic | 1780–1859 |
| Richard Brodhead | 1843–1849 | Pennsylvania | Democratic | 1811–1863 |
| William M. Brodhead | 1975–1983 | Michigan | Democratic | 1941–present |
| Curtis Hooks Brogden | 1877–1879 | North Carolina | Republican | 1816–1901 |
| Frederick G. Bromberg | 1873–1875 | Alabama | Liberal Republican | 1837–1930 |
| Henry P. H. Bromwell | 1865–1869 | Illinois | Republican | 1823–1903 |
| Jacob H. Bromwell | 1894–1903 | Ohio | Republican | 1848–1924 |
| James E. Bromwell | 1961–1965 | Iowa | Republican | 1920–2009 |
| David Bronson | 1841–1843 | Maine | Whig | 1800–1863 |
| Isaac H. Bronson | 1837–1839 | New York | Democratic | 1802–1855 |
| Moses L. Broocks | 1905–1907 | Texas | Democratic | 1864–1908 |
| David Brooks | 1797–1799 | New York | Federalist | 1756–1838 |
| Edward S. Brooks | 1919–1923 | Pennsylvania | Republican | 1867–1957 |
| Edwin B. Brooks | 1919–1923 | Illinois | Republican | 1868–1933 |
| Franklin E. Brooks | 1903–1907 | Colorado | Republican | 1860–1916 |
| George M. Brooks | 1869–1872 | Massachusetts | Republican | 1824–1893 |
| J. Twing Brooks | 1933–1937 | Pennsylvania | Democratic | 1884–1956 |
| Jack Brooks | 1953–1995 | Texas | Democratic | 1922–2012 |
| James Brooks | 1849–1853 | New York | Democratic | 1810–1873 |
| James Brooks | 1867–1873 | New York | Whig | 1810–1873 |
| Micah Brooks | 1815–1817 | New York | Democratic–Republican | 1775–1857 |
| Mo Brooks | 2011–2023 | Alabama | Republican | 1954–present |
| Overton Brooks | 1937–1961 | Louisiana | Democratic | 1897–1961 |
| Preston Brooks | 1853–1856 1856–1857 | South Carolina | Democratic | 1819–1857 |
| Susan Brooks | 2013–2021 | Indiana | Republican | 1960–present |
| Elijah V. Brookshire | 1889–1895 | Indiana | Democratic | 1856–1936 |
| Jacob Broom | 1855–1857 | Pennsylvania | American | 1808–1864 |
| James M. Broom | 1805–1807 | Delaware | Federalist | 1776–1850 |
| John M. Broomall | 1863–1869 | Pennsylvania | Republican | 1816–1894 |
| William Broomfield | 1957–1993 | Michigan | Republican | 1922–2019 |
| John C. Brophy | 1947–1949 | Wisconsin | Republican | 1901–1976 |
| Marriott Brosius | 1889–1901 | Pennsylvania | Republican | 1843–1901 |
| Donald G. Brotzman | 1963–1965 1967–1975 | Colorado | Republican | 1922–2004 |
| Paul Broun | 2007–2015 | Georgia | Republican | 1946–present |
| Robert F. Broussard | 1897–1915 | Louisiana | Democratic | 1864–1918 |
| Glen Browder | 1989–1997 | Alabama | Democratic | 1943–present |
| John M. Brower | 1887–1891 | North Carolina | Republican | 1845–1913 |
| Aaron V. Brown | 1839–1845 | Tennessee | Democratic | 1795–1859 |
| Albert G. Brown | 1839–1841 1847–1853 | Mississippi | Democratic | 1813–1880 |
| Anson Brown | 1839–1840 | New York | Whig | 1800–1840 |
| Anthony Brown | 2017–2023 | Maryland | Democratic | 1961–present |
| Benjamin Brown | 1815–1817 | Massachusetts | Federalist | 1756–1831 |
| Charles Brown | 1841–1843 1847–1849 | Pennsylvania | Democratic | 1797–1883 |
| Charles Elwood Brown | 1885–1889 | Ohio | Republican | 1834–1904 |
| Charles Harrison Brown | 1957–1961 | Missouri | Democratic | 1920–2003 |
| Clarence J. Brown | 1939–1965 | Ohio | Republican | 1893–1965 |
| Bud Brown | 1965–1983 | Ohio | Republican | 1927–2022 |
| Corrine Brown | 1993–2017 | Florida | Democratic | 1946–present |
| Elias Brown | 1829–1831 | Maryland | Democratic | 1793–1857 |
| Foster V. Brown | 1895–1897 | Tennessee | Republican | 1852–1937 |
| Garry E. Brown | 1967–1979 | Michigan | Republican | 1923–1998 |
| George Brown Jr. | 1963–1971 1973–1999 | California | Democratic | 1920–1999 |
| George Houston Brown | 1851–1853 | New Jersey | Whig | 1810–1865 |
| Hank Brown | 1981–1991 | Colorado | Republican | 1940–present |
| Henry Brown | 2001–2011 | South Carolina | Republican | 1935–present |
| James S. Brown | 1863–1865 | Wisconsin | Democratic | 1824–1878 |
| James W. Brown | 1903–1905 | Pennsylvania | Independent Republican | 1844–1909 |
| Jason B. Brown | 1889–1895 | Indiana | Democratic | 1839–1898 |
| Jeremiah Brown | 1841–1845 | Pennsylvania | Whig | 1785–1858 |
| John Brown | 1789–1792 | Virginia | Anti-Administration | 1757–1837 |
| John S. Brown | 1809–1810 | Maryland | Democratic-Republican | c. 1760–1815 |
| John Brown | 1821–1825 | Pennsylvania | Democratic-Republican | 1772–1845 |
| John Brown | 1799–1801 | Rhode Island | Federalist | 1736–1803 |
| John B. Brown | 1892–1893 | Maryland | Democratic | 1836–1898 |
| John Robert Brown | 1887–1889 | Virginia | Republican | 1842–1927 |
| John W. Brown | 1833–1837 | New York | Democratic | 1796–1875 |
| John Y. Brown | 1860–1861 1873–1877 | Kentucky | Democratic | 1835–1904 |
| John Y. Brown Sr. | 1933–1935 | Kentucky | Democratic | 1900–1985 |
| Joe Brown | 1921–1923 | Tennessee | Republican | 1880–1939 |
| Lathrop Brown | 1913–1915 | New York | Democratic | 1883–1959 |
| Milton Brown | 1841–1847 | Tennessee | Whig | 1804–1883 |
| Paul Brown | 1933–1961 | Georgia | Democratic | 1880–1961 |
| Prentiss M. Brown | 1933–1936 | Michigan | Democratic | 1889–1973 |
| Robert Brown | 1798–1815 | Pennsylvania | Democratic-Republican | 1744–1823 |
| Seth W. Brown | 1897–1901 | Ohio | Republican | 1841–1923 |
| Sherrod Brown | 1993–2007 | Ohio | Democratic | 1952–present |
| Titus Brown | 1825–1829 | New Hampshire | National Republican | 1786–1849 |
| Webster E. Brown | 1901–1907 | Wisconsin | Republican | 1851–1929 |
| William Brown | 1819–1821 | Kentucky | Democratic-Republican | 1779–1833 |
| William G. Brown Sr. | 1845–1849 | Virginia | Democratic | 1800–1884 |
| William G. Brown Sr. | 1861–1863 | Virginia | Unionist | 1800–1884 |
| William G. Brown Sr. | 1863–1865 | West Virginia | Unconditional Unionist | 1800–1884 |
| William Gay Brown Jr. | 1911–1916 | West Virginia | Democratic | 1856–1916 |
| William J. Brown | 1843–1845 1849–1851 | Indiana | Democratic | 1805–1857 |
| William Ripley Brown | 1875–1877 | Kansas | Republican | 1840–1916 |
| William Wallace Brown | 1883–1887 | Pennsylvania | Republican | 1836–1926 |
| Ginny Brown-Waite | 2003–2011 | Florida | Republican | 1943–present |
| Sam Brownback | 1995–1996 | Kansas | Republican | 1956–present |
| Charles Browne | 1923–1925 | New Jersey | Democratic | 1875–1947 |
| Edward E. Browne | 1913–1931 | Wisconsin | Republican | 1868–1945 |
| George H. Browne | 1861–1863 | Rhode Island | Unionist | 1811–1885 |
| Thomas H. B. Browne | 1887–1891 | Virginia | Republican | 1844–1892 |
| Thomas M. Browne | 1877–1891 | Indiana | Republican | 1829–1891 |
| Gordon Browning | 1923–1935 | Tennessee | Democratic | 1889–1976 |
| William J. Browning | 1911–1920 | New Jersey | Republican | 1850–1920 |
| Walter P. Brownlow | 1897–1910 | Tennessee | Republican | 1851–1910 |
| Charles B. Brownson | 1951–1959 | Indiana | Republican | 1914–1988 |
| Jim Broyhill | 1963–1986 | North Carolina | Republican | 1927–2023 |
| Joel Broyhill | 1953–1974 | Virginia | Republican | 1919–2006 |
| Donald C. Bruce | 1961–1965 | Indiana | Republican | 1921–1969 |
| Phineas Bruce | 1803 | Massachusetts | Federalist | 1762–1809 |
| Terry L. Bruce | 1985–1993 | Illinois | Democratic | 1944–present |
| Ferdinand Brucker | 1897–1899 | Michigan | Democratic | 1858–1904 |
| Henry Bruckner | 1913–1917 | New York | Democratic | 1871–1942 |
| Clement Laird Brumbaugh | 1913–1921 | Ohio | Democratic | 1863–1921 |
| D. Emmert Brumbaugh | 1943–1947 | Pennsylvania | Republican | 1894–1977 |
| Charles N. Brumm | 1881–1889 1895–1899 | Pennsylvania | Republican | 1838–1917 |
| Charles N. Brumm | 1906–1909 | Pennsylvania | Greenbacker | 1838–1917 |
| George F. Brumm | 1923–1927 1929–1934 | Pennsylvania | Republican | 1880–1934 |
| Stephen Brundidge Jr. | 1897–1909 | Arkansas | Democratic | 1857–1938 |
| David B. Brunner | 1889–1893 | Pennsylvania | Democratic | 1835–1903 |
| William F. Brunner | 1929–1935 | New York | Democratic | 1887–1965 |
| Henry Brush | 1819–1821 | Ohio | Democratic-Republican | 1778–1855 |
| Andrew DeWitt Bruyn | 1837–1838 | New York | Democratic | 1790–1838 |
| Guy M. Bryan | 1857–1859 | Texas | Democratic | 1821–1901 |
| Henry Hunter Bryan | 1819–1821 | Tennessee | Democratic-Republican | 1786–1835 |
| James W. Bryan | 1913–1915 | Washington | Progressive | 1874–1956 |
| John Heritage Bryan | 1825–1827 | North Carolina | Democratic | 1798–1870 |
| John Heritage Bryan | 1827–1829 | North Carolina | National Republican | 1798–1870 |
| Joseph Bryan | 1803–1806 | Georgia | Democratic-Republican | 1773–1812 |
| Joseph Hunter Bryan | 1815–1819 | North Carolina | Democratic-Republican | 1782–1839 |
| Nathan Bryan | 1795–1798 | North Carolina | Democratic-Republican | 1748–1798 |
| William Jennings Bryan | 1891–1895 | Nebraska | Democratic | 1860–1925 |
| Ed Bryant | 1995–2003 | Tennessee | Republican | 1948–present |
| John Bryant | 1983–1997 | Texas | Democratic | 1947–present |
| Lloyd Bryce | 1887–1889 | New York | Democratic | 1851–1917 |
| Joseph R. Bryson | 1939–1953 | South Carolina | Democratic | 1893–1953 |
| Andrew Buchanan | 1835–1839 | Pennsylvania | Democratic | 1780–1848 |
| Frank Buchanan | 1911–1917 | Illinois | Democratic | 1862–1930 |
| Frank Buchanan | 1946–1951 | Pennsylvania | Democratic | 1902–1951 |
| Hugh Buchanan | 1881–1885 | Georgia | Democratic | 1823–1890 |
| James Buchanan | 1821–1831 | Pennsylvania | Democratic | 1791–1868 |
| James Buchanan | 1885–1893 | New Jersey | Republican | 1839–1900 |
| James P. Buchanan | 1913–1937 | Texas | Democratic | 1867–1937 |
| John A. Buchanan | 1889–1893 | Virginia | Democratic | 1843–1921 |
| John H. Buchanan Jr. | 1965–1981 | Alabama | Republican | 1928–2018 |
| Vera Buchanan | 1951–1955 | Pennsylvania | Democratic | 1902–1955 |
| John Conrad Bucher | 1831–1833 | Pennsylvania | Democratic | 1792–1851 |
| Alfred Eliab Buck | 1869–1871 | Alabama | Republican | 1832–1902 |
| Charles F. Buck | 1895–1897 | Louisiana | Democratic | 1841–1918 |
| Daniel Buck | 1795–1797 | Vermont | Federalist | 1753–1816 |
| D. Azro A. Buck | 1823–1825 | Vermont | Democratic-Republican | 1789–1841 |
| D. Azro A. Buck | 1827–1829 | Vermont | National Republican | 1789–1841 |
| Ellsworth B. Buck | 1944–1949 | New York | Republican | 1892–1970 |
| Frank H. Buck | 1933–1942 | California | Democratic | 1887–1942 |
| John R. Buck | 1881–1883 1885–1887 | Connecticut | Republican | 1835–1917 |
| Ken Buck | 2015–2024 | Colorado | Republican | 1959–present |
| Charles R. Buckalew | 1887–1891 | Pennsylvania | Democratic | 1821–1899 |
| John T. Buckbee | 1927–1936 | Illinois | Republican | 1871–1936 |
| Ralph Pomeroy Buckland | 1865–1869 | Ohio | Republican | 1812–1892 |
| Rich T. Buckler | 1935–1943 | Minnesota | Farmer-Labor | 1865–1950 |
| Charles A. Buckley | 1935–1965 | New York | Democratic | 1890–1967 |
| C. W. Buckley | 1868–1873 | Alabama | Republican | 1835–1906 |
| James R. Buckley | 1923–1925 | Illinois | Democratic | 1870–1945 |
| James V. Buckley | 1949–1951 | Illinois | Democratic | 1894–1954 |
| Clarence Buckman | 1903–1907 | Minnesota | Republican | 1851–1917 |
| Aylett H. Buckner | 1873–1885 | Missouri | Democratic | 1816–1894 |
| Aylette Buckner | 1847–1849 | Kentucky | Whig | 1806–1869 |
| Richard A. Buckner | 1823–1825 | Kentucky | Democratic-Republican | 1763–1847 |
| Richard A. Buckner | 1825–1829 | Kentucky | National Republican | 1763–1847 |
| Larry Bucshon | 2011–2025 | Indiana | Republican | 1962–present |
| James Budd | 1883–1885 | California | Democratic | 1851–1908 |
| Ted Budd | 2017–2023 | North Carolina | Republican | 1971–present |
| Hamer H. Budge | 1951–1961 | Idaho | Republican | 1910–2003 |
| Jack Buechner | 1987–1991 | Missouri | Republican | 1940–2020 |
| Alexander W. Buel | 1849–1851 | Michigan | Democratic | 1813–1868 |
| Alexander H. Buell | 1851–1853 | New York | Democratic | 1801–1853 |
| Ann Marie Buerkle | 2011–2013 | New York | Republican | 1951–present |
| Howard Buffett | 1943–1949 1951–1953 | Nebraska | Republican | 1903–1964 |
| James Buffington | 1855–1857 | Massachusetts | American | 1817–1875 |
| James Buffington | 1857–1863 | Massachusetts | Republican | 1817–1875 |
| James Buffington | 1869–1875 | Massachusetts | Republican | 1817–1875 |
| Joseph Buffington | 1843–1847 | Pennsylvania | Whig | 1803–1872 |
| Joseph Buffum Jr. | 1819–1821 | New Hampshire | Democratic-Republican | 1784–1874 |
| Robert M. Bugg | 1853–1855 | Tennessee | Whig | 1805–1887 |
| Robert J. Bulkley | 1911–1915 | Ohio | Democratic | 1880–1965 |
| John Bull | 1833–1835 | Missouri | National Republican | 1803–1863 |
| Melville Bull | 1895–1903 | Rhode Island | Republican | 1854–1909 |
| Henry A. Bullard | 1831–1834 | Louisiana | National Republican | 1788–1851 |
| Henry A. Bullard | 1850–1851 | Louisiana | Whig | 1788–1851 |
| Robert Bullock | 1889–1893 | Florida | Democratic | 1828–1905 |
| Stephen Bullock | 1797–1799 | Massachusetts | Federalist | 1735–1816 |
| Wingfield Bullock | 1821 | Kentucky | Democratic-Republican | died 1821 |
| Alfred L. Bulwinkle | 1921–1929 1931–1950 | North Carolina | Democratic | 1883–1950 |
| Samuel Bunch | 1833–1835 | Tennessee | Democratic' | 1786–1849 |
| Samuel Bunch | 1835–1837 | Tennessee | National Republican | 1786–1849 |
| Hezekiah S. Bundy | 1865–1867 1873–1875 1893–1895 | Ohio | Republican | 1817–1895 |
| Solomon Bundy | 1877–1879 | New York | Republican | 1823–1889 |
| Berkeley L. Bunker | 1945–1947 | Nevada | Democratic | 1906–1999 |
| Benjamin H. Bunn | 1889–1895 | North Carolina | Democratic | 1844–1907 |
| Jim Bunn | 1995–1997 | Oregon | Republican | 1956–present |
| Frank C. Bunnell | 1872–1873 1885–1889 | Pennsylvania | Republican | 1842–1911 |
| Rudolph Bunner | 1827–1829 | New York | Democratic | 1779–1837 |
| Jim Bunning | 1987–1999 | Kentucky | Republican | 1931–2017 |
| Thomas L. Bunting | 1891–1893 | New York | Democratic | 1844–1898 |
| John Chilton Burch | 1859–1861 | California | Democratic | 1826–1885 |
| Thomas G. Burch | 1931–1946 | Virginia | Democratic | 1869–1951 |
| Horatio C. Burchard | 1869–1879 | Illinois | Republican | 1825–1908 |
| Samuel D. Burchard | 1875–1877 | Wisconsin | Democratic | 1836–1901 |
| Thomas F. Burchill | 1943–1945 | New York | Democratic | 1882–1955 |
| George Burd | 1831–1835 | Pennsylvania | National Republican | 1793–1844 |
| Samuel Swinfin Burdett | 1869–1873 | Missouri | Republican | 1836–1914 |
| Clark Burdick | 1919–1933 | Rhode Island | Republican | 1868–1948 |
| Quentin Burdick | 1959–1960 | North Dakota | Democratic | 1908–1992 |
| Theodore Weld Burdick | 1877–1879 | Iowa | Republican | 1836–1898 |
| Usher L. Burdick | 1935–1945 1949–1959 | North Dakota | Republican | 1879–1960 |
| Clair Burgener | 1973–1983 | California | Republican | 1921–2006 |
| Dempsey Burges | 1795–1799 | North Carolina | Democratic-Republican | 1751–1800 |
| Tristam Burges | 1825–1835 | Rhode Island | National Republican | 1770–1853 |
| George F. Burgess | 1901–1917 | Texas | Democratic | 1861–1919 |
| Michael C. Burgess | 2003–2025 | Texas | Republican | 1950–present |
| William O. Burgin | 1939–1946 | North Carolina | Democratic | 1877–1946 |
| Henry Burk | 1901–1903 | Pennsylvania | Republican | 1850–1903 |
| Aedanus Burke | 1789–1791 | South Carolina | Anti-Administration | 1743–1802 |
| Charles H. Burke | 1899–1907 1909–1915 | South Dakota | Republican | 1861–1944 |
| Edmund Burke | 1839–1845 | New Hampshire | Democratic | 1809–1882 |
| Edward R. Burke | 1933–1935 | Nebraska | Democratic | 1880–1968 |
| Frank W. Burke | 1959–1963 | Kentucky | Democratic | 1920–2007 |
| J. Herbert Burke | 1967–1979 | Florida | Republican | 1913–1993 |
| James A. Burke | 1959–1979 | Massachusetts | Democratic | 1910–1983 |
| James F. Burke | 1905–1915 | Pennsylvania | Republican | 1867–1932 |
| John H. Burke | 1933–1935 | California | Democratic | 1894–1951 |
| Michael E. Burke | 1911–1917 | Wisconsin | Democratic | 1863–1918 |
| Raymond H. Burke | 1947–1949 | Ohio | Republican | 1881–1954 |
| Robert E. Burke | 1897–1901 | Texas | Democratic | 1847–1901 |
| Thomas Henry Burke | 1949–1951 | Ohio | Democratic | 1904–1959 |
| William J. Burke | 1919–1923 | Pennsylvania | Republican | 1862–1925 |
| Yvonne Brathwaite Burke | 1973–1979 | California | Democratic | 1932–present |
| Elmer Burkett | 1899–1905 | Nebraska | Republican | 1867–1935 |
| Everett G. Burkhalter | 1963–1965 | California | Democratic | 1897–1975 |
| Edwin C. Burleigh | 1897–1911 | Maine | Republican | 1843–1916 |
| Henry G. Burleigh | 1883–1887 | New York | Republican | 1832–1900 |
| John H. Burleigh | 1873–1877 | Maine | Republican | 1822–1877 |
| Walter A. Burleigh | 1865–1869 | Dakota | Republican | 1820–1896 |
| William Burleigh | 1823–1825 | Maine | Democratic-Republican | 1785–1827 |
| William Burleigh | 1825–1827 | Maine | National Republican | 1785–1827 |
| Albert S. Burleson | 1899–1913 | Texas | Democratic | 1863–1937 |
| Omar Burleson | 1947–1978 | Texas | Democratic | 1906–1991 |
| Anson Burlingame | 1855–1857 | Massachusetts | American | 1820–1870 |
| Anson Burlingame | 1857–1861 | Massachusetts | Republican | 1820–1870 |
| Bill Burlison | 1969–1981 | Missouri | Democratic | 1931–2019 |
| Barker Burnell | 1841–1843 | Massachusetts | Whig | 1798–1843 |
| Daniel D. Burnes | 1893–1895 | Missouri | Democratic | 1851–1899 |
| James N. Burnes | 1883–1889 | Missouri | Democratic | 1827–1889 |
| Edward Burnett | 1887–1889 | Massachusetts | Democratic | 1849–1925 |
| Henry Cornelius Burnett | 1855–1861 | Kentucky | Democratic | 1825–1866 |
| John L. Burnett | 1899–1919 | Alabama | Democratic | 1854–1919 |
| William E. Burney | 1940–1941 | Colorado | Democratic | 1893–1969 |
| Alfred A. Burnham | 1859–1863 | Connecticut | Republican | 1819–1879 |
| George Burnham | 1933–1937 | California | Republican | 1868–1939 |
| John A. Burns | 1957–1959 | Hawaii | Democratic | 1909–1975 |
| Joseph Burns | 1857–1859 | Ohio | Democratic | 1800–1875 |
| Max Burns | 2003–2005 | Georgia | Republican | 1948–present |
| Robert Burns | 1833–1837 | New Hampshire | Democratic | 1792–1866 |
| M. G. Burnside | 1949–1953 1955–1957 | West Virginia | Democratic | 1902–1991 |
| Thomas Burnside | 1815–1816 | Pennsylvania | Democratic-Republican | 1782–1851 |
| Albert G. Burr | 1867–1871 | Illinois | Democratic | 1829–1882 |
| Richard Burr | 1995–2005 | North Carolina | Republican | 1955–present |
| Orlando Burrell | 1895–1897 | Illinois | Republican | 1826–1921 |
| Sherman Everett Burroughs | 1917–1923 | New Hampshire | Republican | 1870–1923 |
| Silas M. Burroughs | 1857–1860 | New York | Republican | 1810–1860 |
| Daniel Burrows | 1821–1823 | Connecticut | Democratic-Republican | 1766–1858 |
| Joseph H. Burrows | 1881–1883 | Missouri | Greenbacker | 1840–1914 |
| Julius C. Burrows | 1873–1875 1879–1883 1885–1895 | Michigan | Republican | 1837–1915 |
| Lorenzo Burrows | 1849–1853 | New York | Whig | 1805–1885 |
| Armistead Burt | 1843–1853 | South Carolina | Democratic | 1802–1883 |
| Olger B. Burtness | 1921–1933 | North Dakota | Republican | 1884–1960 |
| Charles G. Burton | 1895–1897 | Missouri | Republican | 1846–1926 |
| Clarence G. Burton | 1948–1953 | Virginia | Democratic | 1886–1982 |
| Dan Burton | 1983–2013 | Indiana | Republican | 1938–present |
| Hiram R. Burton | 1905–1909 | Delaware | Republican | 1841–1927 |
| Hutchins Gordon Burton | 1819–1824 | North Carolina | Democratic-Republican | 1774–1836 |
| John Burton | 1974–1983 | California | Democratic | 1932–present |
| Laurence J. Burton | 1963–1971 | Utah | Republican | 1926–2002 |
| Phillip Burton | 1964–1983 | California | Democratic | 1926–1983 |
| Sala Burton | 1983–1987 | California | Democratic | 1925–1987 |
| Theodore E. Burton | 1889–1891 1895–1909 1921–1928 | Ohio | Republican | 1851–1929 |
| William A. Burwell | 1806–1821 | Virginia | Democratic-Republican | 1780–1821 |
| Fred E. Busbey | 1943–1945 1947–1949 1951–1955 | Illinois | Republican | 1895–1966 |
| George H. Busby | 1851–1853 | Ohio | Republican | 1794–1869 |
| T. Jeff Busby | 1923–1935 | Mississippi | Democratic | 1884–1964 |
| Samuel T. Busey | 1891–1893 | Illinois | Democratic | 1835–1909 |
| Alvin Bush | 1951–1959 | Pennsylvania | Republican | 1893–1959 |
| Cori Bush | 2021–2025 | Missouri | Democratic | 1976–present |
| George H. W. Bush | 1967–1971 | Texas | Republican | 1924–2018 |
| Allen R. Bushnell | 1891–1893 | Wisconsin | Democratic | 1833–1909 |
| Robert G. Bushong | 1927–1929 | Pennsylvania | Republican | 1883–1951 |
| Albert Bustamante | 1985–1993 | Texas | Democratic | 1935–2021 |
| Cheri Bustos | 2013–2023 | Illinois | Democratic | 1961–present |
| Benjamin Butler | 1867–1875 | Massachusetts | Republican | 1818–1893 |
| Benjamin Butler | 1877–1879 | Massachusetts | Republican | 1818–1893 |
| Chester P. Butler | 1847–1850 | Pennsylvania | Whig | 1798–1850 |
| Ezra Butler | 1813–1815 | Vermont | Democratic-Republican | 1763–1838 |
| James Joseph Butler | 1901–1902 1902–1903 1903–1905 | Missouri | Democratic | 1862–1917 |
| John Cornelius Butler | 1941–1949 1951–1953 | New York | Republican | 1887–1953 |
| Josiah Butler | 1817–1823 | New Hampshire | Democratic-Republican | 1779–1854 |
| M. Caldwell Butler | 1972–1983 | Virginia | Republican | 1925–2014 |
| Mounce G. Butler | 1905–1907 | Tennessee | Democratic | 1849–1917 |
| Robert R. Butler | 1928–1933 | Oregon | Republican | 1881–1933 |
| Roderick R. Butler | 1867–1875 1887–1889 | Tennessee | Republican | 1827–1902 |
| Sampson H. Butler | 1839–1842 | South Carolina | Democratic | 1803–1848 |
| Thomas Butler | 1818–1821 | Louisiana | Democratic-Republican | 1785–1847 |
| Thomas B. Butler | 1849–1851 | Connecticut | Whig | 1806–1873 |
| Thomas S. Butler | 1897–1899 | Pennsylvania | Independent Republican | 1855–1928 |
| Thomas S. Butler | 1899–1928 | Pennsylvania | Republican | 1855–1928 |
| Walter H. Butler | 1891–1893 | Iowa | Democratic | 1852–1931 |
| William Butler | 1801–1813 | South Carolina | Democratic-Republican | 1759–1821 |
| William Butler | 1841–1843 | South Carolina | Whig | 1790–1850 |
| William O. Butler | 1839–1843 | Kentucky | Democratic | 1791–1880 |
| Samuel Butman | 1827–1831 | Maine | National Republican | 1788–1864 |
| G. K. Butterfield | 2004–2022 | North Carolina | Democratic | 1947–present |
| Martin Butterfield | 1859–1861 | New York | Republican | 1790–1866 |
| Benjamin Butterworth | 1879–1883 1885–1891 | Ohio | Republican | 1837–1898 |
| Daniel E. Button | 1967–1971 | New York | Republican | 1917–2009 |
| Charles W. Buttz | 1876–1877 | South Carolina | Republican | 1837–1913 |
| Steve Buyer | 1993–2011 | Indiana | Republican | 1958–present |
| Jesse Atherton Bynum | 1833–1841 | North Carolina | Democratic | 1797–1868 |
| William D. Bynum | 1885–1895 | Indiana | Democratic | 1846–1927 |
| Adam M. Byrd | 1903–1911 | Mississippi | Democratic | 1859–1912 |
| Robert Byrd | 1953–1959 | West Virginia | Democratic | 1917–2010 |
| Bradley Byrne | 2014–2021 | Alabama | Republican | 1955–present |
| Emmet Byrne | 1957–1959 | Illinois | Republican | 1896–1974 |
| James A. Byrne | 1953–1973 | Pennsylvania | Democratic | 1906–1980 |
| Leslie Byrne | 1993–1995 | Virginia | Democratic | 1946–present |
| William T. Byrne | 1937–1952 | New York | Democratic | 1876–1952 |
| James F. Byrnes | 1911–1925 | South Carolina | Democratic | 1882–1972 |
| John W. Byrnes | 1945–1973 | Wisconsin | Republican | 1913–1985 |
| Jo Byrns | 1909–1936 | Tennessee | Democratic | 1869–1936 |
| Joseph W. Byrns Jr. | 1939–1941 | Tennessee | Democratic | 1903–1973 |
| Samuel Byrns | 1891–1893 | Missouri | Democratic | 1848–1914 |
| Beverly Byron | 1979–1993 | Maryland | Democratic | 1932–2025 |
| Goodloe Byron | 1971–1978 | Maryland | Democratic | 1929–1978 |
| Katharine Byron | 1941–1943 | Maryland | Democratic | 1903–1976 |
| William D. Byron | 1939–1941 | Maryland | Democratic | 1895–1941 |