United States Representatives

== 1750-1759 ==
* John Henry Adair Sr. (January 9, 1757 - May 19, 1840)
== 1760-1769 ==
* Asa Adgate (November 17, 1767 - February 15, 1832)
* Benjamin Adams (December 16, 1764 - March 28, 1837)
* John Quincy Adams Sr. (July 11, 1767 - February 23, 1848)
== 1770-1779 ==
# Joel Abbot (March 17, 1776 - November 19, 1826)
# Parmenio Adams Jr. (September 9, 1776 - February 19, 1832)
# John Adams (August 26, 1778 - September 25, 1854)
# William Addams (April 11, 1777 - May 30, 1858)
== 1780-1789 ==
# Amos Abbott (September 10, 1786 - November 2, 1868)
== 1790-1799 ==
# James Abercrombie (February 18, 1792 - July 2, 1861)
== 1800-1809 ==
# Stephen Adams (October 17, 1807 - May 11, 1857)
# Nehemiah Abbott (March 29, 1804 - July 26, 1877)
# Charles Francis Adams Sr. (August 18, 1807 - November 21, 1886)
== 1810-1819 ==
# Garnett Bowditch Adrain (December 15, 1815 - August 17, 1878)
# John Alexander Ahl (August 16, 1813 - April 25, 1882)
# Green Adams (August 20, 1812 - January 18, 1884)
# Josiah Gardner Abbott (November 1, 1814 - June 2, 1891)
== 1820-1829 ==
# Charles Henry Adams (April 10, 1824 - December 15, 1902)
# Ephraim Leister Acker (January 11, 1827 - May 12, 1903)
== 1830-1839 ==
# Silas Adams (February 9, 1839 - May 5, 1896)
# George Madison Adams (December 20, 1837 - April 6, 1920)
== 1840-1849 ==
# Robert Adams Jr. (February 26, 1849 - June 1, 1906)
# Joseph Abbott (January 15, 1840 - February 11, 1908)
# George Everett Adams (June 18, 1840 - October 5, 1917)
# John Joseph Adams (September 16, 1848 - February 16, 1919)
== 1850-1859 ==
# Henry Cullen Adams (November 28, 1850 - July 9, 1906)
# Ernest Francis Acheson (September 19, 1855 - May 16, 1917)
# William Charles Adamson (August 13, 1854 - January 3, 1929)
# Joseph Hayes Acklen (May 20, 1850 - September 28, 1938)
== 1860-1869 ==
# Ernest Robinson Ackerman (June 17, 1863 - October 18, 1931)
# John Aldred McDowell Adair (December 22, 1864 - October 5, 1938)
# John William Abercrombie (May 17, 1866 - July 2, 1940)
# Charles Adkins (February 7, 1863 - March 31, 1941)
== 1870-1879 ==
# Charles Laban Abernethy (March 18, 1872 - February 23, 1955)
== 1880-1889 ==
# Wilbur Louis Adams (October 23, 1884 - December 4, 1937)
# Jackson Leroy Adair (February 23, 1887 - January 19, 1956)
== 1890-1899 ==
# Fred George Aandahl (April 9, 1897 - April 7, 1966)
# Llewelyn Sherman Adams (January 8, 1899 - October 27, 1986)
== 1900-1909 ==
# Edward Ross Adair (December 14, 1907 - May 5, 1983)
# Thomas Gerstle Abernethy (May 16, 1903 - June 11, 1998)
# Watkins Moorman Abbitt (May 21, 1908 - July 13, 1998)
== 1910-1919 ==
# Hugh Joseph Addonizio (January 31, 1914 - February 2, 1981)
# Homer E. Abele (November 21, 1916 - May 12, 2000)
== 1920-1929 ==
# Joseph Patrick Addabbo (March 17, 1925 - April 10, 1986)
# Brockman Adams (January 13, 1927 - September 10, 2004)
# Ellis James Abdnor (February 13, 1923 - May 16, 2012)
== 1930-1939 ==
# James George Abourezk (February 24, 1931 - February 24, 2023)
# Neil Abercrombie (June 26, 1938)
== 1940-1949 ==
# Gary Leonard Ackerman (November 19, 1942)
== 1950-1959 ==
# John Herbert Adler (August 23, 1959 - April 4, 2011)
# Ralph Lee Abraham Jr. (September 16, 1954)
== 1960-1969 ==
# Robert Brown Aderholt (July 22, 1965)
== 1970-1979 ==
# Peter Rey Aguilar (June 19, 1979)