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

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

## 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 |
| Isauro Gabaldon | 1920–1928 | Philippines | None | 1875–1942 |
| Tulsi Gabbard | 2013–2021 | Hawaii | Democratic | 1981–present |
| Matt Gaetz | 2017–2024 | Florida | Republican | 1982–present |
| Joshua Gage | 1817–1819 | Massachusetts | Democratic-Republican | 1763–1831 |
| Harry C. Gahn | 1921–1923 | Ohio | Republican | 1880–1962 |
| John P. Gaines | 1847–1849 | Kentucky | Whig | 1795–1857 |
| John W. Gaines | 1897–1909 | Tennessee | Democratic | 1860–1926 |
| Joseph H. Gaines | 1901–1911 | West Virginia | Republican | 1864–1951 |
| William E. Gaines | 1887–1889 | Virginia | Republican | 1844–1912 |
| Nathan Gaither | 1829–1833 | Kentucky | Democratic | 1788–1862 |
| John Galbraith | 1833–1837 1839–1841 | Pennsylvania | Democratic | 1794–1860 |
| George Gale | 1789–1791 | Maryland | Pro-Administration | 1756–1815 |
| Levin Gale | 1827–1829 | Maryland | Democratic | 1784–1834 |
| Richard P. Gale | 1941–1945 | Minnesota | Republican | 1900–1973 |
| Nick Galifianakis | 1967–1973 | North Carolina | Democratic | 1928–2023 |
| Cornelius Edward Gallagher | 1959–1973 | New Jersey | Democratic | 1921–2018 |
| James A. Gallagher | 1943–1945 1947–1949 | Pennsylvania | Republican | 1869–1957 |
| Mike Gallagher | 2017–2024 | Pennsylvania | Republican | 1984–present |
| Thomas Gallagher | 1909–1921 | Illinois | Democratic | 1850–1930 |
| William Gallagher | 1945–1946 | Minnesota | Democratic-Farmer-Labor | 1875–1946 |
| Albert Gallatin | 1795–1801 | Pennsylvania | Democratic-Republican | 1761–1849 |
| Elton Gallegly | 1987–2013 | California | Republican | 1944–present |
| Pete Gallego | 2013–2015 | Texas | Democratic | 1961–present |
| Ruben Gallego | 2015–2025 | Arizona | Democratic | 1979–present |
| José Manuel Gallegos | 1853–1856 1871–1873 | New Mexico | Democratic | 1815–1875 |
| Jacob Harold Gallinger | 1885–1889 | New Hampshire | Republican | 1837–1918 |
| James A. Gallivan | 1914–1928 | Massachusetts | Democratic | 1866–1928 |
| Dean Gallo | 1985–1994 | New Jersey | Republican | 1935–1994 |
| Samuel Galloway | 1855–1857 | Ohio | Oppositionist | 1811–1872 |
| Albert Gallup | 1837–1839 | New York | Democratic | 1796–1851 |
| James Gamble | 1851–1855 | Pennsylvania | Democratic | 1809–1883 |
| John Rankin Gamble | 1891 | South Dakota | Republican | 1848–1891 |
| Ralph A. Gamble | 1937–1957 | New York | Republican | 1885–1959 |
| Robert J. Gamble | 1895–1897 1899–1901 | South Dakota | Republican | 1851–1924 |
| Roger L. Gamble | 1833–1835 | Georgia | Democratic | 1787–1847 |
| Roger L. Gamble | 1841–1843 | Georgia | Whig | 1787–1847 |
| Stephen Warfield Gambrill | 1924–1938 | Maryland | Democratic | 1873–1938 |
| Robert Gammage | 1977–1979 | Texas | Democratic | 1938–2012 |
| Harry Gandy | 1915–1921 | South Dakota | Democratic | 1881–1957 |
| James V. Ganly | 1919–1921 1923 | New York | Democratic | 1878–1923 |
| Barzillai Gannett | 1809–1812 | Massachusetts | Democratic-Republican | 1764–1832 |
| Greg Ganske | 1995–2003 | Iowa | Republican | 1949–present |
| John Ganson | 1863–1865 | New York | Democratic | 1818–1874 |
| Martin K. Gantz | 1891–1893 | Ohio | Democratic | 1862–1916 |
| Harvey C. Garber | 1903–1907 | Ohio | Democratic | 1866–1938 |
| Jacob A. Garber | 1929–1931 | Virginia | Republican | 1879–1953 |
| Milton C. Garber | 1923–1933 | Oklahoma | Republican | 1867–1948 |
| Joe Garcia | 2013–2015 | Florida | Democratic | 1963–present |
| Mike Garcia | 2020–2025 | California | Republican | 1976–present |
| Robert Garcia | 1978–1990 | New York | Democratic | 1933–2017 |
| Warren Gard | 1913–1921 | Ohio | Democratic | 1873–1929 |
| Barent Gardenier | 1807–1811 | New York | Federalist | 1776–1822 |
| Augustus P. Gardner | 1902–1917 | Massachusetts | Republican | 1865–1918 |
| Cory Gardner | 2011–2015 | Colorado | Republican | 1974–present |
| Edward J. Gardner | 1945–1947 | Ohio | Democratic | 1898–1950 |
| Francis Gardner | 1807–1809 | New Hampshire | Democratic-Republican | 1771–1835 |
| Frank Gardner | 1923–1929 | Indiana | Democratic | 1872–1937 |
| Gideon Gardner | 1809–1811 | Massachusetts | Democratic-Republican | 1759–1832 |
| Jim Gardner | 1967–1969 | North Carolina | Republican | 1933–present |
| John J. Gardner | 1893–1913 | New Jersey | Republican | 1845–1921 |
| Mills Gardner | 1877–1879 | Ohio | Republican | 1830–1910 |
| Washington Gardner | 1899–1911 | Michigan | Republican | 1845–1928 |
| James A. Garfield | 1863–1880 | Ohio | Republican | 1831–1881 |
| Selucius Garfielde | 1869–1873 | Washington | Republican | 1822-1883 |
| David S. Garland | 1810–1811 | Virginia | Democratic-Republican | 1769–1841 |
| James Garland | 1835–1839 | Virginia | Democratic | 1791–1885 |
| James Garland | 1839–1841 | Virginia | Conservative | 1791–1885 |
| Mahlon M. Garland | 1915–1920 | Pennsylvania | Republican | 1856–1920 |
| Peter A. Garland | 1961–1963 | Maine | Republican | 1923–2005 |
| Rice Garland | 1834–1837 | Louisiana | National Republican | c. 1795–1861 |
| Rice Garland | 1837–1840 | Louisiana | Whig | c. 1795–1861 |
| Edward Garmatz | 1947–1973 | Maryland | Democratic | 1903–1986 |
| Alfred B. Garner | 1909–1911 | Pennsylvania | Republican | 1873–1930 |
| John Nance Garner | 1903–1933 | Texas | Democratic | 1868–1967 |
| James M. Garnett | 1805–1809 | Virginia | Democratic-Republican | 1770–1843 |
| Muscoe R. H. Garnett | 1856–1861 | Virginia | Democratic | 1821–1864 |
| Robert S. Garnett | 1817–1825 | Virginia | Democratic-Republican | 1789–1840 |
| Robert S. Garnett | 1825–1827 | Virginia | Democratic | 1789–1840 |
| Daniel G. Garnsey | 1825–1829 | New York | National Republican | 1779–1851 |
| Abraham Ellison Garrett | 1871–1873 | Tennessee | Democratic | 1830–1907 |
| Clyde L. Garrett | 1937–1941 | Texas | Democratic | 1885–1959 |
| Daniel E. Garrett | 1913–1915 1917–1919 1921–1932 | Texas | Democratic | 1869–1932 |
| Finis J. Garrett | 1905–1929 | Tennessee | Democratic | 1875–1956 |
| Scott Garrett | 2003–2017 | New Jersey | Republican | 1959–present |
| Tom Garrett | 2017–2019 | Virginia | Republican | 1972–present |
| Daniel Garrison | 1823–1825 | New Jersey | Democratic-Republican | 1782–1851 |
| Daniel Garrison | 1825–1827 | New Jersey | Democratic | 1782–1851 |
| George T. Garrison | 1881–1883 1884–1885 | Virginia | Democratic | 1835–1889 |
| Nathaniel Garrow | 1827–1829 | New York | Democratic | 1780–1841 |
| William Willis Garth | 1877–1879 | Alabama | Democratic | 1828–1912 |
| Fred C. Gartner | 1939–1941 | Pennsylvania | Republican | 1896–1972 |
| Lucius J. Gartrell | 1857–1861 | Georgia | Democratic | 1821–1891 |
| William S. Garvin | 1845–1847 | Pennsylvania | Democratic | 1806–1883 |
| J. Vaughan Gary | 1945–1965 | Virginia | Democratic | 1892–1973 |
| Allard H. Gasque | 1923–1938 | South Carolina | Democratic | 1873–1938 |
| Elizabeth Hawley Gasque | 1938–1939 | South Carolina | Democratic | 1886–1989 |
| Percy Lee Gassaway | 1935–1937 | Oklahoma | Democratic | 1885–1937 |
| Athelston Gaston | 1899–1901 | Pennsylvania | Democratic | 1838–1907 |
| William Gaston | 1813–1817 | North Carolina | Federalist | 1778–1844 |
| Seth Merrill Gates | 1839–1843 | New York | Whig | 1800–1877 |
| Ezekiel C. Gathings | 1939–1969 | Arkansas | Democratic | 1903–1979 |
| Alfred Moore Gatlin | 1823–1825 | North Carolina | Democratic-Republican | 1790–1841 |
| Lucien C. Gause | 1875–1879 | Arkansas | Democratic | 1836–1880 |
| Joseph A. Gavagan | 1929–1943 | New York | Democratic | 1892–1968 |
| Leon H. Gavin | 1943–1963 | Pennsylvania | Republican | 1893–1963 |
| Edward J. Gay | 1885–1889 | Louisiana | Democratic | 1816–1889 |
| Joseph M. Gaydos | 1968–1993 | Pennsylvania | Democratic | 1926–2015 |
| John Gayle | 1847–1849 | Alabama | Whig | 1792–1859 |
| June W. Gayle | 1900–1901 | Kentucky | Democratic | 1865–1942 |
| James M. Gaylord | 1851–1853 | Ohio | Democratic | 1811–1874 |
| James W. Gazlay | 1823–1825 | Ohio | Democratic-Republican | 1784–1874 |
| John H. Gear | 1887–1891 1893–1895 | Iowa | Republican | 1825–1900 |
| Bertrand W. Gearhart | 1935–1949 | California | Republican | 1890–1955 |
| Thomas J. Geary | 1890–1895 | California | Democratic | 1854–1929 |
| John Gebhard | 1821–1823 | New York | Federalist | 1782–1854 |
| George W. Geddes | 1879–1887 | Ohio | Democratic | 1824–1892 |
| James Geddes | 1813–1815 | New York | Federalist | 1763–1838 |
| James P. Geelan | 1945–1947 | Connecticut | Democratic | 1901–1982 |
| Bernard J. Gehrmann | 1935–1943 | Wisconsin | Progressive | 1880–1958 |
| Jacob A. Geissenhainer | 1889–1895 | New Jersey | Democratic | 1839–1917 |
| Sam Gejdenson | 1981–2001 | Connecticut | Democratic | 1948–present |
| George Gekas | 1983–2003 | Pennsylvania | Republican | 1930–2021 |
| L. M. Gensman | 1921–1923 | Oklahoma | Republican | 1878–1954 |
| Brady P. Gentry | 1953–1957 | Texas | Democratic | 1896–1966 |
| Meredith Poindexter Gentry | 1839–1843 1845–1853 | Tennessee | Whig | 1809–1866 |
| Henry George Jr. | 1911–1915 | New York | Democratic | 1862–1916 |
| Melvin C. George | 1881–1885 | Oregon | Republican | 1849-1933 |
| Myron V. George | 1950–1959 | Kansas | Republican | 1900–1972 |
| Newell A. George | 1959–1961 | Kansas | Democratic | 1904–1992 |
| Dick Gephardt | 1977–2005 | Missouri | Democratic | 1941–present |
| Elmer H. Geran | 1923–1925 | New Jersey | Democratic | 1875–1954 |
| Pete Geren | 1989–1997 | Texas | Democratic | 1952–present |
| Charles L. Gerlach | 1939–1947 | Pennsylvania | Republican | 1895–1947 |
| Jim Gerlach | 2003–2015 | Pennsylvania | Republican | 1955–present |
| Fred B. Gernerd | 1921–1923 | Pennsylvania | Republican | 1879–1948 |
| Elbridge Gerry | 1789–1793 | Massachusetts | Anti-Administration | 1744–1814 |
| Elbridge Gerry | 1849–1851 | Maine | Democratic | 1813–1886 |
| James Gerry | 1839–1843 | Pennsylvania | Democratic | 1796–1873 |
| Peter G. Gerry | 1913–1915 | Rhode Island | Democratic | 1879–1957 |
| William H. Gest | 1887–1891 | Illinois | Republican | 1838–1912 |
| Thomas S. Gettys | 1964–1974 | South Carolina | Democratic | 1912–2003 |
| James Lawrence Getz | 1867–1873 | Pennsylvania | Democratic | 1821–1891 |
| Lee E. Geyer | 1939–1941 | California | Democratic | 1888–1941 |
| James Gholson | 1833–1835 | Virginia | National Republican | 1798–1848 |
| Samuel J. Gholson | 1836–1838 | Mississippi | Democratic | 1808–1883 |
| Thomas Gholson Jr. | 1808–1816 | Virginia | Democratic-Republican | c. 1780–1816 |
| Robert Giaimo | 1959–1981 | Connecticut | Democratic | 1919–2006 |
| Greg Gianforte | 2017–2021 | Montana | Republican | 1961–present |
| Jim Gibbons | 1997–2006 | Nevada | Republican | 1944–present |
| Sam Gibbons | 1963–1997 | Florida | Democratic | 1920–2012 |
| Bob Gibbs | 2011–2023 | Ohio | Republican | 1954–present |
| Florence R. Gibbs | 1940–1941 | Georgia | Democratic | 1890–1964 |
| W. Benjamin Gibbs | 1939–1940 | Georgia | Democratic | 1889–1940 |
| Charles Hopper Gibson | 1885–1891 | Maryland | Democratic | 1842–1900 |
| Chris Gibson | 2011–2017 | New York | Republican | 1964–present |
| Ernest Willard Gibson | 1923–1933 | Vermont | Republican | 1872–1940 |
| Eustace Gibson | 1883–1887 | West Virginia | Democratic | 1842–1900 |
| Henry R. Gibson | 1895–1905 | Tennessee | Republican | 1837–1938 |
| James K. Gibson | 1870–1871 | Virginia | Conservative | 1812–1879 |
| John S. Gibson | 1941–1947 | Georgia | Democratic | 1893–1960 |
| Randall L. Gibson | 1875–1883 | Louisiana | Democratic | 1832–1892 |
| De Witt C. Giddings | 1872–1875 1877–1879 | Texas | Democratic | 1827–1903 |
| Joshua Reed Giddings | 1838–1842 1842–1849 | Ohio | Whig | 1795–1864 |
| Joshua Reed Giddings | 1849–1855 | Ohio | Free Soiler | 1795–1864 |
| Joshua Reed Giddings | 1855–1857 | Ohio | Oppositionist | 1795–1864 |
| Joshua Reed Giddings | 1857–1859 | Ohio | Republican | 1795–1864 |
| Napoleon B. Giddings | 1855 | Nebraska | Democratic | 1816–1897 |
| Charles L. Gifford | 1922–1947 | Massachusetts | Republican | 1871–1947 |
| Oscar S. Gifford | 1885–1889 1889–1891 | Dakota South Dakota | Republican | 1842–1913 |
| Gabby Giffords | 2007–2012 | Arizona | Democratic | 1970–present |
| Edward Gilbert | 1850–1851 | California | Democratic | c. 1819–1852 |
| Ezekiel Gilbert | 1793–1795 | New York | Pro-Administration | 1756–1841 |
| Ezekiel Gilbert | 1795–1797 | New York | Federalist | 1756–1841 |
| George G. Gilbert | 1899–1907 | Kentucky | Democratic | 1849–1909 |
| Jacob H. Gilbert | 1960–1971 | New York | Democratic | 1920–1981 |
| Newton W. Gilbert | 1905–1906 | Indiana | Republican | 1862–1939 |
| Ralph Waldo Emerson Gilbert | 1921–1929 1931–1933 | Kentucky | Democratic | 1882–1939 |
| Sylvester Gilbert | 1818–1819 | Connecticut | Democratic-Republican | 1755–1846 |
| William A. Gilbert | 1855–1857 | New York | Oppositionist | 1815–1875 |
| Wayne Gilchrest | 1991–2009 | Maryland | Republican | 1946–present |
| Fred C. Gilchrist | 1931–1945 | Iowa | Republican | 1868–1950 |
| James H. Gildea | 1935–1939 | Pennsylvania | Democratic | 1890–1988 |
| William Branch Giles | 1790–1795 | Virginia | Anti-Administration | 1762–1830 |
| William Branch Giles | 1795–1798 1801–1803 | Virginia | Democratic-Republican | 1762–1830 |
| William F. Giles | 1845–1847 | Maryland | Democratic | 1807–1879 |
| Calvin W. Gilfillan | 1869–1871 | Pennsylvania | Republican | 1832–1901 |
| John Gilfillan | 1885–1887 | Minnesota | Republican | 1835–1924 |
| Clarence C. Gilhams | 1906–1909 | Indiana | Republican | 1860–1912 |
| John Gill Jr. | 1905–1911 | Maryland | Democratic | 1850–1918 |
| Joseph J. Gill | 1899–1903 | Ohio | Republican | 1846–1920 |
| Michael Joseph Gill | 1914–1915 | Missouri | Democratic | 1864-1918 |
| Patrick F. Gill | 1909–1911 1912–1913 | Missouri | Democratic | 1868–1923 |
| Thomas Gill | 1963–1965 | Hawaii | Democratic | 1922–2009 |
| Courtland C. Gillen | 1931–1933 | Indiana | Democratic | 1880–1954 |
| Dean M. Gillespie | 1944–1947 | Colorado | Republican | 1884–1949 |
| Eugene P. Gillespie | 1891–1893 | Pennsylvania | Democratic | 1852–1899 |
| Frank Gillespie | 1933–1935 | Illinois | Democratic | 1869–1954 |
| James Gillespie | 1793–1795 | North Carolina | Anti-Administration | c. 1747–1805 |
| James Gillespie | 1795–1799 1803–1805 | North Carolina | Democratic-Republican | c. 1747–1805 |
| Oscar W. Gillespie | 1903–1911 | Texas | Democratic | 1858–1927 |
| Charles W. Gillet | 1893–1905 | New York | Republican | 1840–1908 |
| Ransom H. Gillet | 1833–1837 | New York | Democratic | 1800–1876 |
| Frederick H. Gillett | 1893–1925 | Massachusetts | Republican | 1851–1935 |
| James Gillett | 1903–1906 | California | Republican | 1860–1937 |
| Edward H. Gillette | 1879–1881 | Iowa | Greenbacker | 1840–1918 |
| Guy Mark Gillette | 1933–1936 | Iowa | Democratic | 1879–1973 |
| Wilson D. Gillette | 1941–1951 | Pennsylvania | Republican | 1880–1951 |
| Kirsten Gillibrand | 2007–2009 | New York | Democratic | 1966–present |
| George W. Gillie | 1939–1949 | Indiana | Republican | 1880–1963 |
| John J. Gilligan | 1965–1967 | Ohio | Democratic | 1921–2013 |
| James L. Gillis | 1857–1859 | Pennsylvania | Democratic | 1792–1881 |
| Paul Gillmor | 1989–2007 | Ohio | Republican | 1939–2007 |
| Alexander Gillon | 1793–1794 | South Carolina | Anti-Administration | 1741–1794 |
| Benjamin A. Gilman | 1973–2003 | New York | Republican | 1922–2016 |
| Charles J. Gilman | 1857–1859 | Maine | Republican | 1824–1901 |
| Nicholas Gilman | 1789–1795 | New Hampshire | Pro-Administration | 1755–1814 |
| Nicholas Gilman | 1795–1797 | New Hampshire | Federalist | 1755–1814 |
| Dixie Gilmer | 1949–1951 | Oklahoma | Democratic | 1901–1954 |
| George Rockingham Gilmer | 1821–1823 | Georgia | Democratic-Republican | 1790–1859 |
| George Rockingham Gilmer | 1827–1829 1833–1835 | Georgia | Democratic | 1790–1859 |
| John Adams Gilmer | 1857–1859 | North Carolina | American | 1805–1868 |
| John Adams Gilmer | 1859–1861 | North Carolina | Oppositionist | 1805–1868 |
| Thomas Walker Gilmer | 1841–1843 | Virginia | Whig | 1802–1844 |
| Thomas Walker Gilmer | 1843–1844 | Virginia | Democratic | 1802–1844 |
| Alfred Gilmore | 1849–1853 | Pennsylvania | Democratic | 1812–1890 |
| Edward Gilmore | 1913–1915 | Massachusetts | Democratic | 1867–1924 |
| John Gilmore | 1829–1833 | Pennsylvania | Democratic | 1780–1845 |
| Samuel Louis Gilmore | 1909–1910 | Louisiana | Democratic | 1859–1910 |
| Don Gingery | 1935–1939 | Pennsylvania | Democratic | 1884–1961 |
| Phil Gingrey | 2003–2015 | Georgia | Republican | 1942–present |
| Newt Gingrich | 1979–1999 | Georgia | Republican | 1943–present |
| Ronald B. Ginn | 1973–1983 | Georgia | Democratic | 1934–2005 |
| Joseph Gist | 1821–1825 | South Carolina | Democratic-Republican | 1775–1836 |
| Joseph Gist | 1825–1827 | South Carolina | Democratic | 1775–1836 |
| Robert H. Gittins | 1913–1915 | New York | Democratic | 1869–1957 |
| John R. Glascock | 1883–1885 | California | Democratic | 1845–1913 |
| Thomas Glascock | 1835–1839 | Georgia | Democratic | 1790–1841 |
| Hugh Glasgow | 1813–1817 | Pennsylvania | Democratic-Republican | 1769–1818 |
| Carter Glass | 1902–1918 | Virginia | Democratic | 1858–1946 |
| Presley T. Glass | 1885–1889 | Tennessee | Democratic | 1824–1902 |
| Samuel F. Glatfelter | 1923–1925 | Pennsylvania | Democratic | 1858–1927 |
| Henry Glen | 1793–1795 | New York | Pro-Administration | 1739–1814 |
| Henry Glen | 1795–1801 | New York | Federalist | 1739–1814 |
| Milton W. Glenn | 1957–1965 | New Jersey | Republican | 1903–1967 |
| Thomas L. Glenn | 1901–1903 | Idaho | Populist | 1847–1918 |
| Dan Glickman | 1977–1995 | Kansas | Democratic | 1944–present |
| John Gloninger | 1813 | Pennsylvania | Federalist | 1758–1836 |
| Adam J. Glossbrenner | 1865–1869 | Pennsylvania | Democratic | 1810–1889 |
| David Delano Glover | 1929–1935 | Arkansas | Democratic | 1868–1952 |
| John Milton Glover | 1885–1889 | Missouri | Democratic | 1852–1929 |
| John Montgomery Glover | 1873–1879 | Missouri | Democratic | 1822–1891 |
| James P. Glynn | 1915–1923 1925–1930 | Connecticut | Republican | 1867–1930 |
| Martin H. Glynn | 1899–1901 | New York | Democratic | 1871–1924 |
| Calvin Goddard | 1801–1805 | Connecticut | Federalist | 1768–1842 |
| William Godshalk | 1879–1883 | Pennsylvania | Republican | 1817–1891 |
| Hannibal L. Godwin | 1907–1921 | North Carolina | Democratic | 1873–1929 |
| Herman P. Goebel | 1903–1911 | Ohio | Republican | 1853–1930 |
| J. Henry Goeke | 1911–1915 | Ohio | Democratic | 1869–1930 |
| Abe Goff | 1947–1949 | Idaho | Republican | 1899–1984 |
| Nathan Goff Jr. | 1883–1889 | West Virginia | Republican | 1843–1920 |
| William L. Goggin | 1839–1843 1844–1845 1847–1849 | Virginia | Whig | 1807–1870 |
| Louie Gohmert | 2005–2023 | Texas | Republican | 1953–present |
| Thomas R. Gold | 1809–1813 1815–1817 | New York | Federalist | 1764–1827 |
| James S. Golden | 1949–1955 | Kentucky | Republican | 1891–1971 |
| Benjamin M. Golder | 1925–1933 | Pennsylvania | Republican | 1891–1946 |
| Henry M. Goldfogle | 1901–1915 1919–1921 | New York | Democratic | 1856–1929 |
| Charles Goldsborough | 1805–1817 | Maryland | Federalist | 1765–1834 |
| T. Alan Goldsborough | 1921–1939 | Maryland | Democratic | 1877–1951 |
| Barry Goldwater Jr. | 1969–1983 | California | Republican | 1938–present |
| Julius Goldzier | 1893–1895 | Illinois | Democratic | 1854–1925 |
| Edward Isaac Golladay | 1871–1873 | Tennessee | Democratic | 1830–1897 |
| Jacob Golladay | 1867–1870 | Kentucky | Democratic | 1819–1887 |
| Anthony Gonzalez | 2019–2023 | Ohio | Republican | 1984–present |
| Charlie Gonzalez | 1999–2013 | Texas | Democratic | 1945–present |
| Henry B. Gonzalez | 1961–1999 | Texas | Democratic | 1916–2000 |
| Jenniffer González-Colón | 2017–2025 | Puerto Rico | New Progressive/Republican | 1976–present |
| Daniel Linn Gooch | 1901–1905 | Kentucky | Democratic | 1853–1913 |
| Daniel W. Gooch | 1858–1865 1873–1875 | Massachusetts | Republican | 1820–1891 |
| Bob Good | 2021–2025 | Virginia | Republican | 1965–present |
| James William Good | 1909–1921 | Iowa | Republican | 1866–1929 |
| Louis B. Goodall | 1917–1921 | Maine | Republican | 1851–1935 |
| John Goode | 1875–1881 | Virginia | Democratic | 1829–1909 |
| Patrick Gaines Goode | 1837–1843 | Ohio | Whig | 1798–1862 |
| Samuel Goode | 1799–1801 | Virginia | Democratic-Republican | 1756–1822 |
| Virgil Goode | 1997–2009 | Virginia | Republican | 1946–present |
| William Goode | 1841–1843 1853–1859 | Virginia | Democratic | 1798–1859 |
| Charles Goodell | 1959–1968 | New York | Republican | 1926–1987 |
| John M. Goodenow | 1829–1830 | Ohio | Democratic | 1782–1838 |
| Robert Goodenow | 1851–1853 | Maine | Whig | 1800–1874 |
| Rufus K. Goodenow | 1849–1851 | Maine | Whig | 1790–1863 |
| Benjamin Goodhue | 1789–1795 | Massachusetts | Pro-Administration | 1748–1814 |
| Benjamin Goodhue | 1795–1796 | Massachusetts | Federalist | 1748–1814 |
| John R. Goodin | 1875–1877 | Kansas | Democratic | 1836–1885 |
| Bob Goodlatte | 1993–2019 | Virginia | Republican | 1952–present |
| George Atlee Goodling | 1961–1965 1967–1975 | Pennsylvania | Republican | 1896–1982 |
| Bill Goodling | 1975–2001 | Pennsylvania | Republican | 1927–2017 |
| Isaac Goodnight | 1889–1895 | Kentucky | Democratic | 1849–1901 |
| Chauncey Goodrich | 1795–1801 | Connecticut | Federalist | 1759–1815 |
| Elizur Goodrich | 1799–1801 | Connecticut | Federalist | 1761–1849 |
| John Z. Goodrich | 1851–1855 | Massachusetts | Whig | 1804–1885 |
| Milo Goodrich | 1871–1873 | New York | Republican | 1814–1881 |
| Angier Goodwin | 1943–1955 | Massachusetts | Republican | 1881–1975 |
| Forrest Goodwin | 1913 | Maine | Republican | 1862–1913 |
| Godfrey G. Goodwin | 1925–1933 | Minnesota | Republican | 1873–1933 |
| Henry C. Goodwin | 1854–1855 | New York | Whig | 1824–1860 |
| Henry C. Goodwin | 1857–1859 | New York | Republican | 1824–1860 |
| John Noble Goodwin | 1861–1863 1865–1867 | Maine Arizona | Republican | 1824–1887 |
| Philip A. Goodwin | 1933–1937 | New York | Republican | 1882–1937 |
| Robert K. Goodwin | 1940–1941 | Iowa | Republican | 1905–1983 |
| William S. Goodwin | 1911–1921 | Arkansas | Democratic | 1866–1937 |
| Albert T. Goodwyn | 1896–1897 | Alabama | Populist | 1842–1931 |
| Peterson Goodwyn | 1803–1818 | Virginia | Democratic-Republican | 1745–1818 |
| Charles Goodyear | 1845–1847 1865–1867 | New York | Democratic | 1804–1876 |
| Wells Goodykoontz | 1919–1923 | West Virginia | Republican | 1872–1944 |
| Bart Gordon | 1985–2011 | Tennessee | Democratic | 1949–present |
| George W. Gordon | 1907–1911 | Tennessee | Democratic | 1836–1911 |
| James Gordon | 1791–1795 | New York | Pro-Administration | 1739–1810 |
| Robert B. Gordon | 1899–1903 | Ohio | Democratic | 1855–1923 |
| Samuel Gordon | 1841–1843 1845–1847 | New York | Democratic | 1802–1873 |
| Thomas S. Gordon | 1943–1959 | Illinois | Democratic | 1893–1959 |
| William Gordon | 1797–1800 | New Hampshire | Federalist | 1763–1802 |
| William Gordon | 1913–1919 | Ohio | Democratic | 1862–1942 |
| William F. Gordon | 1830–1835 | Virginia | Democratic | 1787–1858 |
| Albert Gore Sr. | 1939–1944 1945–1953 | Tennessee | Democratic | 1907–1998 |
| Al Gore | 1977–1985 | Tennessee | Democratic | 1948–present |
| Benjamin Gorham | 1820–1823 | Massachusetts | Democratic-Republican | 1775–1855 |
| Benjamin Gorham | 1827–1831 1833–1835 | Massachusetts | National Republican | 1775–1855 |
| George E. Gorman | 1913–1915 | Illinois | Democratic | 1873–1935 |
| James S. Gorman | 1891–1895 | Michigan | Democratic | 1850–1923 |
| John J. Gorman | 1921–1923 1925–1927 | Illinois | Republican | 1883–1949 |
| Willis A. Gorman | 1849–1853 | Indiana | Democratic | 1816–1876 |
| Chester C. Gorski | 1949–1951 | New York | Democratic | 1906–1975 |
| Martin Gorski | 1943–1949 | Illinois | Democratic | 1886–1949 |
| Edward W. Goss | 1930–1935 | Connecticut | Republican | 1893–1972 |
| James H. Goss | 1868–1869 | South Carolina | Republican | 1820–1886 |
| Porter Goss | 1989–2004 | Florida | Republican | 1938–present |
| Ed Gossett | 1939–1951 | Texas | Democratic | 1902–1990 |
| Daniel Gott | 1847–1851 | New York | Whig | 1794–1864 |
| Herman D. Gould | 1849–1851 | New York | Whig | 1799–1852 |
| Norman J. Gould | 1915–1923 | New York | Republican | 1877–1964 |
| Samuel W. Gould | 1911–1913 | Maine | Democratic | 1852–1935 |
| Joseph A. Goulden | 1903–1911 1913–1915 | New York | Democratic | 1844–1915 |
| Theodore Gourdin | 1813–1815 | South Carolina | Democratic-Republican | 1764–1826 |
| Andrew R. Govan | 1822–1825 | South Carolina | Democratic-Republican | 1794–1841 |
| Andrew R. Govan | 1825–1827 | South Carolina | Democratic | 1794–1841 |
| Samuel F. Gove | 1868–1869 | Georgia | Republican | 1822–1900 |
| Trey Gowdy | 2017–2019 | South Carolina | Republican | 1964–present |
| Bernard F. Grabowski | 1963–1967 | Connecticut | Democratic | 1923–2019 |
| Bill Gradison | 1975–1993 | Ohio | Republican | 1928–present |
| Benjamin F. Grady | 1891–1895 | North Carolina | Democratic | 1831–1914 |
| Joseph V. Graff | 1895–1911 | Illinois | Republican | 1854–1921 |
| George S. Graham | 1913–1931 | Pennsylvania | Republican | 1850–1931 |
| Gwen Graham | 2015–2017 | Florida | Democratic | 1963–present |
| James Graham | 1833–1836 1836–1837 | North Carolina | National Republican | 1793–1851 |
| James Graham | 1837–1843 1845–1847 | North Carolina | Whig | 1793–1851 |
| James H. Graham | 1859–1861 | New York | Republican | 1812–1881 |
| James M. Graham | 1909–1915 | Illinois | Democratic | 1852–1945 |
| John H. Graham | 1893–1895 | New York | Democratic | 1835–1895 |
| Lindsey Graham | 1995–2003 | South Carolina | Republican | 1955–present |
| Louis E. Graham | 1939–1955 | Pennsylvania | Republican | 1880–1965 |
| William Graham | 1837–1839 | Indiana | Whig | 1782–1858 |
| William H. Graham | 1898–1903 1905–1911 | Pennsylvania | Republican | 1844–1923 |
| William J. Graham | 1917–1924 | Illinois | Republican | 1872–1937 |
| Phil Gramm | 1979–1983 | Texas | Democratic | 1942–present |
| Phil Gramm | 1983–1985 | Texas | Republican | 1942–present |
| Rod Grams | 1993–1995 | Minnesota | Republican | 1948–2013 |
| Kathryn E. Granahan | 1956–1963 | Pennsylvania | Democratic | 1894–1979 |
| William T. Granahan | 1945–1947 1949–1956 | Pennsylvania | Democratic | 1895–1956 |
| Peter C. Granata | 1931–1932 | Illinois | Republican | 1898–1973 |
| Fred Grandy | 1987–1995 | Iowa | Republican | 1948–present |
| William J. Granfield | 1930–1937 | Massachusetts | Democratic | 1889–1959 |
| Amos P. Granger | 1855–1857 | New York | Oppositionist | 1789–1866 |
| Amos P. Granger | 1857–1859 | New York | Republican | 1789–1866 |
| Bradley F. Granger | 1861–1863 | Michigan | Republican | 1825–1882 |
| Daniel L. D. Granger | 1903–1909 | Rhode Island | Democratic | 1852–1909 |
| Francis Granger | 1835–1837 | New York | National Republican | 1792–1868 |
| Francis Granger | 1839–1841 1841–1843 | New York | Whig | 1792–1868 |
| Kay Granger | 1997–2025 | Texas | Republican | 1943–present |
| Miles T. Granger | 1887–1889 | Connecticut | Democratic | 1817–1895 |
| Walter K. Granger | 1941–1953 | Utah | Democratic | 1888–1978 |
| Abraham P. Grant | 1837–1839 | New York | Democratic | 1804–1871 |
| George M. Grant | 1938–1965 | Alabama | Democratic | 1897–1982 |
| James W. Grant | 1987–1989 | Florida | Democratic | 1943–present |
| James W. Grant | 1989–1991 | Florida | Republican | 1943–present |
| John G. Grant | 1909–1911 | North Carolina | Republican | 1858–1923 |
| Robert A. Grant | 1939–1949 | Indiana | Republican | 1905–1998 |
| Seaton Grantland | 1835–1839 | Georgia | Democratic | 1782–1864 |
| Chuck Grassley | 1975–1981 | Iowa | Republican | 1933–present |
| Ella T. Grasso | 1971–1975 | Connecticut | Democratic | 1919–1981 |
| Joseph J. Gravely | 1867–1871 | Missouri | Republican | 1828–1872 |
| Alexander Graves | 1883–1885 | Missouri | Democratic | 1844–1916 |
| Garret Graves | 2015–2025 | Louisiana | Republican | 1972–present |
| Tom Graves | 2010–2020 | Georgia | Republican | 1970–present |
| William J. Graves | 1835–1837 | Kentucky | National Republican | 1805–1848 |
| William J. Graves | 1837–1841 | Kentucky | Whig | 1805–1848 |
| Edward W. Gray | 1915–1919 | New Jersey | Republican | 1870–1942 |
| Edwin Gray | 1799–1813 | Virginia | Democratic-Republican | 1743–18?? |
| Finly H. Gray | 1911–1917 1933–1939 | Indiana | Democratic | 1863–1947 |
| Hiram Gray | 1837–1839 | New York | Democratic | 1801–1890 |
| John C. Gray | 1820–1821 | Virginia | Democratic-Republican | 1783–1823 |
| Joseph A. Gray | 1935–1939 | Pennsylvania | Democratic | 1884–1966 |
| Kenneth J. Gray | 1955–1974 1985–1989 | Illinois | Democratic | 1924–2014 |
| Oscar L. Gray | 1915–1919 | Alabama | Democratic | 1865–1936 |
| William H. Gray III | 1979–1991 | Pennsylvania | Democratic | 1941–2013 |
| Alan Grayson | 2009–2011 2013–2017 | Florida | Democratic | 1958–present |
| William J. Grayson | 1833–1837 | South Carolina | Nullifier | 1788–1863 |
| Horace Greeley | 1848–1849 | New York | Whig | 1811–1872 |
| Byram Green | 1843–1845 | New York | Democratic | 1786–1865 |
| Edith Green | 1955–1974 | Oregon | Democratic | 1910–1987 |
| Frederick W. Green | 1851–1855 | Ohio | Democratic | 1816–1879 |
| Gene Green | 1993–2019 | Texas | Democratic | 1947–present |
| Henry D. Green | 1899–1903 | Pennsylvania | Democratic | 1857–1929 |
| Innis Green | 1827–1831 | Pennsylvania | Democratic | 1776–1839 |
| Isaiah L. Green | 1805–1809 1811–1813 | Massachusetts | Democratic-Republican | 1761–1841 |
| James S. Green | 1847–1851 | Missouri | Democratic | 1817–1870 |
| Mark Green | 1999–2007 | Wisconsin | Republican | 1960–present |
| Robert A. Green | 1925–1944 | Florida | Democratic | 1892–1973 |
| Robert Stockton Green | 1885–1887 | New Jersey | Democratic | 1831–1895 |
| S. William Green | 1978–1993 | New York | Republican | 1929–2002 |
| Thomas M. Green Jr. | 1802–1803 | Mississippi | Democratic-Republican | 1758–1813 |
| Wharton J. Green | 1883–1887 | North Carolina | Democratic | 1831–1910 |
| William J. Green Jr. | 1945–1947 1949–1963 | Pennsylvania | Democratic | 1910–1963 |
| William J. Green III | 1964–1977 | Pennsylvania | Democratic | 1938–present |
| William R. Green | 1911–1928 | Iowa | Republican | 1856–1947 |
| Willis Green | 1839–1845 | Kentucky | Whig | 1794–1862 |
| Enid Greene Mickelsen | 1995–1997 | Utah | Republican | 1958–present |
| Frank L. Greene | 1912–1923 | Vermont | Republican | 1870–1930 |
| George Woodward Greene | 1869–1870 | New York | Democratic | 1831–1895 |
| William Laury Greene | 1897–1899 | Nebraska | Populist | 1849–1899 |
| William S. Greene | 1898–1924 | Massachusetts | Republican | 1841–1924 |
| Frederic T. Greenhalge | 1889–1891 | Massachusetts | Republican | 1842–1896 |
| Halbert S. Greenleaf | 1883–1885 1891–1893 | New York | Democratic | 1827–1906 |
| Edward W. Greenman | 1887–1889 | New York | Democratic | 1840–1908 |
| Christopher Greenup | 1792–1795 | Kentucky | Anti-Administration | 1750–1818 |
| Christopher Greenup | 1795–1797 | Kentucky | Democratic-Republican | 1750–1818 |
| Isabella Greenway | 1933–1937 | Arizona | Democratic | 1886–1953 |
| Alfred B. Greenwood | 1853–1859 | Arkansas | Democratic | 1811–1889 |
| Arthur H. Greenwood | 1923–1939 | Indiana | Democratic | 1880–1963 |
| Ernest Greenwood | 1951–1953 | New York | Democratic | 1884–1955 |
| Jim Greenwood | 1993–2005 | Pennsylvania | Republican | 1951–present |
| Paul Ranous Greever | 1935–1939 | Wyoming | Democratic | 1891–1943 |
| Alexander W. Gregg | 1903–1919 | Texas | Democratic | 1855–1919 |
| Andrew Gregg | 1791–1795 | Pennsylvania | Anti-Administration | 1755–1835 |
| Andrew Gregg | 1795–1807 | Pennsylvania | Democratic-Republican | 1755–1835 |
| Curtis H. Gregg | 1911–1913 | Pennsylvania | Democratic | 1865–1933 |
| James M. Gregg | 1857–1859 | Indiana | Democratic | 1806–1869 |
| Judd Gregg | 1981–1989 | New Hampshire | Republican | 1947–present |
| Dudley S. Gregory | 1847–1849 | New Jersey | Whig | 1800–1874 |
| Noble Jones Gregory | 1937–1959 | Kentucky | Democratic | 1897–1971 |
| W. Voris Gregory | 1927–1936 | Kentucky | Democratic | 1877–1936 |
| John Greig | 1841 | New York | Whig | 1779–1858 |
| Stanley L. Greigg | 1965–1967 | Iowa | Democratic | 1931–2002 |
| George Grennell Jr. | 1829–1837 | Massachusetts | National Republican | 1786–1877 |
| George Grennell Jr. | 1837–1839 | Massachusetts | Whig | 1786–1877 |
| Walter Gresham | 1893–1895 | Texas | Democratic | 1841–1920 |
| Benjamin E. Grey | 1851–1855 | Kentucky | Whig | 1809–1875 |
| George W. Grider | 1965–1967 | Tennessee | Democratic | 1912–1991 |
| Henry Grider | 1843–1847 | Kentucky | Whig | 1796–1866 |
| Henry Grider | 1861–1865 | Kentucky | Unionist | 1796–1866 |
| Henry Grider | 1865–1866 | Kentucky | Democratic | 1796–1866 |
| William W. Griest | 1909–1929 | Pennsylvania | Republican | 1858–1929 |
| Anthony J. Griffin | 1918–1935 | New York | Democratic | 1866–1935 |
| Charles H. Griffin | 1968–1973 | Mississippi | Democratic | 1926–1989 |
| Daniel J. Griffin | 1913–1917 | New York | Democratic | 1880–1926 |
| Isaac Griffin | 1813–1817 | Pennsylvania | Democratic-Republican | 1756–1827 |
| John K. Griffin | 1831–1839 | South Carolina | Nullifier | 1789–1841 |
| John K. Griffin | 1839–1841 | South Carolina | Democratic | 1789–1841 |
| Levi T. Griffin | 1893–1895 | Michigan | Democratic | 1837–1906 |
| Michael Griffin | 1894–1899 | Wisconsin | Republican | 1842–1899 |
| Robert P. Griffin | 1957–1966 | Michigan | Republican | 1923–2015 |
| Samuel Griffin | 1789–1791 | Virginia | Pro-Administration | 1746–1810 |
| Samuel Griffin | 1791–1793 | Virginia | Anti-Administration | 1746–1810 |
| Samuel Griffin | 1793–1795 | Virginia | Pro-Administration | 1746–1810 |
| Thomas Griffin | 1803–1805 | Virginia | Federalist | 1773–1837 |
| Tim Griffin | 2011–2015 | Arkansas | Republican | 1968–present |
| Francis M. Griffith | 1897–1905 | Indiana | Democratic | 1849–1927 |
| John K. Griffith | 1937–1941 | Louisiana | Democratic | 1882–1942 |
| Parker Griffith | 2009–2011 | Alabama | Republican | 1942–present |
| Samuel Griffith | 1871–1873 | Pennsylvania | Democratic | 1816–1893 |
| Martha Griffiths | 1955–1974 | Michigan | Democratic | 1912–2003 |
| Percy W. Griffiths | 1943–1949 | Ohio | Republican | 1893–1983 |
| James M. Griggs | 1897–1910 | Georgia | Democratic | 1861–1910 |
| George Barnes Grigsby | 1920–1921 | Alaska | Democratic | 1874–1962 |
| Raúl Grijalva | 2003–2025 | Arizona | Democratic | 1948–2025 |
| Thomas W. Grimes | 1887–1891 | Georgia | Democratic | 1844–1905 |
| Michael Grimm | 2011–2015 | New York | Republican | 1970–present |
| Joseph Grinnell | 1843–1851 | Massachusetts | Whig | 1788–1885 |
| Josiah B. Grinnell | 1863–1867 | Iowa | Republican | 1821–1891 |
| Moses H. Grinnell | 1839–1841 | New York | Whig | 1803–1877 |
| Wayne R. Grisham | 1979–1983 | California | Republican | 1923–2011 |
| Gaylord Griswold | 1803–1805 | New York | Federalist | 1767–1809 |
| Glenn Griswold | 1931–1939 | Indiana | Democratic | 1890–1940 |
| Harry W. Griswold | 1939 | Wisconsin | Republican | 1886–1939 |
| John Ashley Griswold | 1869–1871 | New York | Democratic | 1822–1902 |
| John Augustus Griswold | 1863–1865 | New York | Democratic | 1818–1872 |
| John Augustus Griswold | 1865–1869 | New York | Republican | 1818–1872 |
| Matthew Griswold | 1891–1893 1895–1897 | Pennsylvania | Republican | 1833–1919 |
| Roger Griswold | 1795–1805 | Connecticut | Federalist | 1762–1812 |
| William S. Groesbeck | 1857–1859 | Ohio | Democratic | 1815–1897 |
| Asle Gronna | 1905–1911 | North Dakota | Republican | 1858–1922 |
| Chester H. Gross | 1939–1941 1943–1949 | Pennsylvania | Republican | 1888–1973 |
| Ezra C. Gross | 1819–1821 | New York | Democratic-Republican | 1787–1829 |
| Harold R. Gross | 1949–1975 | Iowa | Republican | 1899–1987 |
| Samuel Gross | 1819–1823 | Pennsylvania | Democratic-Republican | 1776–1839 |
| Charles H. Grosvenor | 1885–1891 1893–1907 | Ohio | Republican | 1833–1917 |
| Thomas P. Grosvenor | 1813–1817 | New York | Federalist | 1778–1817 |
| John E. Grotberg | 1985–1986 | Illinois | Republican | 1925–1986 |
| Jonathan Grout | 1789–1791 | Massachusetts | Anti-Administration | 1737–1807 |
| William W. Grout | 1881–1883 1885–1901 | Vermont | Republican | 1836–1902 |
| William Barry Grove | 1791–1795 | North Carolina | Pro-Administration | 1764–1818 |
| William Barry Grove | 1795–1803 | North Carolina | Federalist | 1764–1818 |
| Asa Grover | 1867–1869 | Kentucky | Democratic | 1819–1887 |
| James R. Grover Jr. | 1963–1975 | New York | Republican | 1919–2012 |
| La Fayette Grover | 1859 | Oregon | Democratic | 1823–1911 |
| Martin Grover | 1845–1847 | New York | Democratic | 1811–1875 |
| Galusha A. Grow | 1851–1857 | Pennsylvania | Democratic | 1823–1907 |
| Galusha A. Grow | 1857–1863 1894–1903 | Pennsylvania | Republican | 1823–1907 |
| Felix Grucci | 2001–2003 | New York | Republican | 1951–present |
| Felix Grundy | 1811–1814 | Tennessee | Democratic-Republican | 1777–1840 |
| Frank J. Guarini | 1979–1993 | New Jersey | Democratic | 1924–present |
| Charles Gubser | 1953–1974 | California | Republican | 1916–2011 |
| Gilbert Gude | 1967–1977 | Maryland | Republican | 1923–2007 |
| James M. Gudger Jr. | 1903–1907 1911–1915 | North Carolina | Democratic | 1855–1920 |
| V. Lamar Gudger | 1977–1981 | North Carolina | Democratic | 1919–2004 |
| Richard W. Guenther | 1881–1889 | Wisconsin | Republican | 1845–1913 |
| Frank E. Guernsey | 1908–1917 | Maine | Republican | 1866–1927 |
| Pedro Guevara | 1923–1936 | Philippines | None | 1879–1938 |
| Ben H. Guill | 1950–1951 | Texas | Republican | 1909–1994 |
| Frank Guinta | 2011–2013 2015–2017 | New Hampshire | Republican | 1970–present |
| Lewis B. Gunckel | 1873–1875 | Ohio | Republican | 1826–1903 |
| Steve Gunderson | 1981–1997 | Wisconsin | Republican | 1951–present |
| James Gunn | 1897–1899 | Idaho | Populist | 1843–1911 |
| Bill Gunter | 1973–1975 | Florida | Democratic | 1934–2024 |
| Thomas M. Gunter | 1874–1883 | Arkansas | Democratic | 1826–1904 |
| Henry Hosford Gurley | 1823–1825 | Louisiana | Democratic-Republican | 1788–1833 |
| Henry Hosford Gurley | 1825–1831 | Louisiana | National Republican | 1788–1833 |
| John A. Gurley | 1859–1863 | Ohio | Republican | 1813–1863 |
| Edward J. Gurney | 1963–1969 | Florida | Republican | 1914–1996 |
| Amos Gustine | 1841–1843 | Pennsylvania | Democratic | 1789–1844 |
| Luis Gutiérrez | 1993–2019 | Illinois | Democratic | 1953–present |
| Gil Gutknecht | 1995–2007 | Minnesota | Republican | 1951–present |
| Tennyson Guyer | 1973–1981 | Ohio | Republican | 1912–1981 |
| U. S. Guyer | 1924–1925 1927–1943 | Kansas | Republican | 1868–1943 |
| James Guyon Jr. | 1820–1821 | New York | Democratic-Republican | 1778–1846 |
| William M. Gwin | 1841–1843 | Mississippi | Democratic | 1805–1885 |
| Ralph W. Gwinn | 1945–1959 | New York | Republican | 1884–1962 |
| John W. Gwynne | 1935–1949 | Iowa | Republican | 1889–1972 |