Lawrence Dean
- 1976 – Michigan’s 10th congressional district (AI) – lost
Lyle Dean
- 1964 – Oregon’s 3rd congressional district (R) – lost
- 1966 – Oregon’s 3rd congressional district (R) – lost
Madeleine Cunnane Dean
- 2018 – Pennsylvania’s 1st congressional district (D) – won
- 2020 – Pennsylvania’s 4th congressional district (D) – won
- 2022 – Pennsylvania’s 4th congressional district (D) – won
Max Dean
- 1976 – Michigan’s 7th congressional district (Labor) – lost
- 1984 – United States Senate (Michigan) (I) – lost
William D. Dean
- 2010 – Florida’s 16th congressional district (W/I) – lost
William Dean
- 2012 – United States Senate (Missouri) (W/I) – lost
Charles Bennett Deane
- 1946 – North Carolina’s 8th congressional district (D) – won
- 1948 – North Carolina’s 8th congressional district (D) – won
- 1950 – North Carolina’s 8th congressional district (D) – won
- 1952 – North Carolina’s 8th congressional district (D) – won
- 1954 – North Carolina’s 8th congressional district (D) – won
Cleveland Dear, Sr.
- 1932 – Louisiana’s 8th congressional district (D) – won
- 1934 – Louisiana’s 8th congressional district (D) – won
Noach Dear
- 2000 – New York’s 9th congressional district (R, CON) – lost
Karen S. Deardorff
- 2010 – United States Senate (Alaska) (W/I) – lost
Walter H. Dearing
- 1922 – New York’s 11th congressional district (S, FL) – lost
- 1928 – New York’s 11th congressional district (S) – lost
- 1930 – New York’s 11th congressional district (S) – lost
- 1932 – New York’s 11th congressional district (S) – lost
- 1934 – New York’s 11th congressional district (S) – lost
Donald M. DeArmon
- 2000 – Maryland’s 6th congressional district (D) – lost
- 2002 – Maryland’s 6th congressional district (D) – lost
Cary J. Deaton
- 2000 – Louisiana’s 1st congressional district (D) – lost
Eric W. Deaton
- 2010 – United States Senate (Ohio) (C) – lost
G. O. Deaton
- 1950 – Mississippi’s 4th congressional district (R) – lost
Thomas Patrick (Pat) Deaton
- 1990 – Missouri’s 7th congressional district (D) – lost
- 1992 – Missouri’s 7th congressional district (D) – lost
Jim Deats
- 1994 – Texas’ 14th congressional district (R) – lost
F. Joe Deauchamp
- 1974 – California’s 13th congressional district (Special) (D) – lost
Mathilda M. Deavers
- 1936 – Illinois’ at large congressional district (SL) – lost
Estelle DeBates
- 1986 – Kentucky’s 3rd congressional district (SW) – lost
Jim DeBello
- 2020 – California’s 52nd congressional district (R) – lost
Rod DeBerry
- 1994 – Tennessee’s 9th congressional district (R) – lost
- 1996 – Tennessee’s 9th congressional district (R) – lost
Dan Debicella
- 2010 – Connecticut’s 4th congressional district (R) – lost
- 2014 – Connecticut’s 4th congressional district (R, I) – lost
Benjamin S. DeBoice
- 1950 – Illinois’ 21st congressional district (R) – lost
Dan DeBono
- 2018 – New York’s 3rd congressional district (R, CON) – lost
Arnold D. Debrow
- 1968 – Alabama’s 1st congressional district (D) – lost
Tracey DeBruhl
- 2020 – North Carolina’s 11th congressional district (L) – lost
Ernest E. Debs
- 1932 – California’s 17th congressional district (Liberty) – lost
Richard DeCamp
- 1948 – Iowa’s 5th congressional district (Proh.) – lost
- 1950 – Iowa’s 5th congressional district (Proh.) – lost
Clarence DeCan
- 1944 – Michigan’s 2nd congressional district (Proh.) – lost
- 1946 – Michigan’s 2nd congressional district (Proh.) – lost
Christopher F. DeCarlo
- 2010 – Virginia’s 11th congressional district (I) – lost
- 2012 – Virginia’s 11th congressional district (I) – lost
Michael DeCarlo
- 2018 – United States Senate (Arizona) (W/I) – lost
Salvatore DeCarlo
- 1942 – New Jersey’s 12th congressional district (Liberal) – lost
Samuel A. DeCaro
- 1966 – Illinois’ 6th congressional district (R) – lost
Bernie DeCastro
- 2010 – United States Senate (Florida) (C) – lost
Dennis Decherd
- 1992 – California’s 27th congressional district (L) – lost
- 1994 – California’s 27th congressional district (L) – lost
Frederick J. Dechow
- 1980 – Michigan’s 10th congressional district (L) – lost
Huey Joel Deckard
- 1978 – Indiana’s 8th congressional district (R) – won
- 1980 – Indiana’s 8th congressional district (R) – won
- 1982 – Indiana’s 8th congressional district (R) – lost
Joel Deckard
- 2000 – United States Senate (Florida) (Ref.) – lost
Arch Decker
- 1982 – Colorado’s 1st congressional district (R) – lost
Baba Jean Decker
- 1950 – Washington’s 6th congressional district (Prog.) – lost
Dan Decker
- 2022 – United States Senate (Hawaii) (Aloha ʻĀina) – lost
John Henry Decker
- 2012 – Connecticut’s 1st congressional district (R) – lost
Robert S. Decker
- 1964 – Illinois’ 9th congressional district (R) – lost
Teresa S. Decker
- 1986 – Michigan’s 5th congressional district (D) – lost
Fred S. DeCola
- 1922 – Illinois’ 8th congressional district (R) – lost
Dennis Webster DeConcini
- 1976 – United States Senate (Arizona) (D) – won
- 1982 – United States Senate (Arizona) (D) – won
- 1988 – United States Senate (Arizona) (D) – won
Robert R. Decormier
- 1948 – New York’s 30th congressional district (D, Liberal, American Labor) – lost
James H. DeCoursey, Jr.
- 1970 – Kansas’ 3rd congressional district (D) – lost
David DeDoncker
- 1962 – Illinois’ 19th congressional district (D) – lost
