Frank Atwood
- 2012 – Colorado’s 1st congressional district (L) – lost
- 2014 – Colorado’s 1st congressional district (L) – lost
- 2022 – United States Senate (Colorado) (Approval Voting) – lost
Genevieve Atwood
- 1990 – Utah’s 2nd congressional district (R) – lost
Harold R. Atwood
- 1942 – Minnesota’s 1st congressional district (D) – lost
Harrison Henry Atwood
- 1920 – Massachusetts’ 12th congressional district (R) – lost
William O. Atwood
- 1920 – Maryland’s 4th congressional district (R) – lost
- 1930 – Maryland’s 4th congressional district (R) – lost
Arla A. Aubaugh
- 1962 – United States Senate (Pennsylvania) (SL) – lost
John B. Aubuchon
- 1980 – Massachusetts’ 2nd congressional district (I) – lost
Bayard C. Auchincloss
- 1964 – Oklahoma’s 6th congressional district (R) – lost
Jacob Daniel Auchincloss
- 2020 – Massachusetts’ 4th congressional district (D-inc) – won
- 2022 – Massachusetts’ 4th congressional district (D) – won
James Coats Auchincloss
- 1942 – New Jersey’s 3rd congressional district (R) – won
- 1944 – New Jersey’s 3rd congressional district (R) – won
- 1946 – New Jersey’s 3rd congressional district (R) – won
- 1948 – New Jersey’s 3rd congressional district (R) – won
- 1950 – New Jersey’s 3rd congressional district (R) – won
- 1952 – New Jersey’s 3rd congressional district (R) – won
- 1954 – New Jersey’s 3rd congressional district (R) – won
- 1956 – New Jersey’s 3rd congressional district (R) – won
- 1958 – New Jersey’s 3rd congressional district (R) – won
- 1960 – New Jersey’s 3rd congressional district (R) – won
- 1962 – New Jersey’s 3rd congressional district (R) – won
Edgar J. Auclair
- 1936 – Michigan’s 14th congressional district (Union) – lost
Walter Leslie AuCoin
- 1974 – Oregon’s 1st congressional district (D) – won
- 1976 – Oregon’s 1st congressional district (D) – won
- 1978 – Oregon’s 1st congressional district (D) – won
- 1980 – Oregon’s 1st congressional district (D) – won
- 1982 – Oregon’s 1st congressional district (D) – won
- 1984 – Oregon’s 1st congressional district (D) – won
- 1986 – Oregon’s 1st congressional district (D) – won
- 1988 – Oregon’s 1st congressional district (D) – won
- 1990 – Oregon’s 1st congressional district (D) – won
- 1992 – United States Senate (Oregon) (D) – lost
Bill Auer
- 1994 – New Jersey’s 5th congressional district (D) – lost
- 1996 – New Jersey’s 5th congressional district (D) – lost
Bob Auerbach
- 2002 – Maryland’s 5th congressional district (G-W/I) – lost
- 2004 – Maryland’s 5th congressional district (G) – lost
- 2012 – Maryland’s 5th congressional district (G) – lost
Gary Auerbach
- 1994 – Arizona’s 5th congressional district (D) – lost
Oscar Louis Auf der Heide
- 1924 – New Jersey’s 11th congressional district (D) – won
- 1926 – New Jersey’s 11th congressional district (D) – won
- 1928 – New Jersey’s 11th congressional district (D) – won
- 1930 – New Jersey’s 11th congressional district (D) – won
- 1932 – New Jersey’s 14th congressional district (D) – won
R. Craig Augenstein
- 2002 – South Carolina’s 6th congressional district (L) – lost
Scott Eugene Aughney
- 2010 – Michigan’s 7th congressional district (T) – lost
Bernard August
- 2012 – Delaware’s at large congressional district (G) – lost
- 2014 – Delaware’s at large congressional district (G) – lost
Mark A. Augusti
- 2002 – Illinois’ 5th congressional district (R) – lost
Kathryn M. Augustin
- 1976 – Michigan’s 15th congressional district (L) – lost
Owen Augustin
- 1986 – New York’s 12th congressional district (R) – lost
- 1988 – New York’s 12th congressional district (R, CON) – lost
- 1992 – New York’s 10th congressional district (CON) – lost
A. E. Augustine
- 1946 – Iowa’s 4th congressional district (D) – lost
Alan Augustson
- 2008 – Illinois’ 5th congressional district (G) – lost
James Vance Aukerman
- 1982 – Rhode Island’s 2nd congressional district (D) – lost
William M. Aukerman
- 1940 – Pennsylvania’s 23rd congressional district (D) – lost
Norman Aulabaugh
- 2004 – Wisconsin’s 1st congressional district (I) – lost
James Aulenti
- 2013 – Massachusetts’ 5th congressional district (Special) (I) – lost
Vincent H. Auleta
- 1930 – New York’s 20th congressional district (D) – lost
Lee Auman
- 2018 – Alabama’s 4th congressional district (D) – lost
Richard D. Auman
- 2006 – Illinois’ 16th congressional district (D) – lost
Douglas R. Aurand
- 1980 – Illinois’ 16th congressional district (D) – lost
Wilson Aurbach
- 2006 – Texas’ 30th congressional district (R) – lost
Chris Auriemma
- 2020 – New Jersey’s 9th congressional district (L) – lost
Jimmy Ausbrooks
- 2022 – Kentucky’s 1st congressional district (D) – lost
Andrew E. Ausman
- 1932 – Alabama’s 9th congressional district (Prog., I) – lost
Richard Ausman
- 2022 – Wisconsin’s 7th congressional district (D) – lost
Gil Aust
- 1998 – Alabama’s 5th congressional district (R) – lost
Richard D. Auster
- 1982 – Arizona’s 5th congressional district (L) – lost
Albert Elmer Austin
- 1938 – Connecticut’s 4th congressional district (R) – won
- 1940 – Connecticut’s 4th congressional district (R) – lost
De Graff Austin
- 1952 – California’s 30th congressional district (D) – lost
F. Byrne Austin
- 1948 – Maryland’s 6th congressional district (D) – lost
Harry H. Austin
- 1936 – Nevada’s at large congressional district (I) – lost
Henry Austin
- 1968 – Michigan’s 16th congressional district (SW) – lost
James E. Austin
- 1968 – Missouri’s 6th congressional district (R) – lost
Jeannine Austin
- 1996 – North Carolina’s 9th congressional district (NL) – lost
John R. Austin
- 1976 – Ohio’s 3rd congressional district (I) – lost
Kevin Austin
- 2010 – United States Senate (Alaska) (W/I) – lost
Lawrence Austin
- 2010 – United States Senate (Alaska) (W/I) – lost
Margaret E. W. Austin
- 1938 – Oklahoma’s 6th congressional district (Proh.) – lost
