Thomas J. Magrann
- 1980 – Pennsylvania’s 4th congressional district (D) 73,895th – lost
Bernard F. Magruder
- 1942 – Wisconsin’s 1st congressional district (D) – lost
Bill Maguire
- 1996 – United States Senate (Oklahoma) (I) – lost
- 2000 – Oklahoma’s 5th congressional district (I) – lost
Crispin Maguire
- 1978 – New York’s 39th congressional district (R, CON) – lost
Gene Andrew Maguire
- 1974 – New Jersey’s 7th congressional district (D) – won
- 1976 – New Jersey’s 7th congressional district (D) – won
- 1978 – New Jersey’s 7th congressional district (D) – won
- 1980 – New Jersey’s 7th congressional district (D) – lost
James E. Maguire
- 1920 – Massachusetts’ 10th congressional district (R) – lost
- 1924 – Massachusetts’ 10th congressional district (R) – lost
Robert C. Maguire
- 1968 – Massachusetts’ 5th congressional district (D) – lost
Joseph Magyer
- 2022 – Tennessee’s 4th congressional district (I) – lost
Dan Mahaffey
- 1980 – California’s 40th congressional district (L) – lost
Mike Mahaffey
- 1996 – Iowa’s 3rd congressional district (R) – lost
John Valgene Mahalchik
- 1964 – United States Senate (New Jersey) (America First) – lost
- 1974 – New Jersey’s 6th congressional district (Regular Democracy) – lost
- 1976 – New Jersey’s 4th congressional district (I) – lost
- 1978 – New Jersey’s 4th congressional district (Betsy Ross) – lost
Jim Mahan
- 1984 – Texas’ 9th congressional district (R) – lost
Lawrence Mahan
- 1940 – New Jersey’s 10th congressional district (Comm.) – lost
Steven E. Mahan
- 1988 – Illinois’ 16th congressional district (D) – lost
James P. Maher
- 1920 – New York’s 7th congressional district (D) – lost
James R. Maher
- 1978 – United States Senate (Kansas) (CON) – lost
- 1984 – United States Senate (Kansas) (D) – lost
Michael Maher
- 2022 – California’s 21st congressional district (R) – lost
Patricia M. Maher
- 1998 – New York’s 4th congressional district (Liberal) – lost
- 2014 – New York’s 2nd congressional district (D) – lost
Philip V. Maher
- 1962 – Missouri’s 2nd congressional district (D) – lost
Stanley W. Mahew
- 1944 – Connecticut’s 4th congressional district (S) – lost
George Mahler
- 1966 – Washington’s 6th congressional district (R) – lost
Rick Mahler
- 2010 – South Carolina’s 4th congressional district (L) – lost
Asif Mahmood
- 2022 – California’s 40th congressional district (D) – lost
Syed R. Mahmood
- 2002 – California’s 13th congressional district (R) – lost
Mahmoud Mahmoud
- 2018 – New Jersey’s 8th congressional district (I) – lost
Walter Mahnke
- 1948 – Michigan’s 4th congressional district (Prog.) – lost
Don Mahon
- 1966 – Iowa’s 5th congressional district (R) – lost
- 1968 – Iowa’s 5th congressional district (R) – lost
- 1970 – Iowa’s 5th congressional district (R) – lost
Gabriel Heyward Mahon, Jr.
- 1936 – South Carolina’s 4th congressional district (D) – won
George Herman Mahon
- 1934 – Texas’ 19th congressional district (D) – won
- 1936 – Texas’ 19th congressional district (D) – won
- 1938 – Texas’ 19th congressional district (D) – won
- 1940 – Texas’ 19th congressional district (D) – won
- 1942 – Texas’ 19th congressional district (D) – won
- 1944 – Texas’ 19th congressional district (D) – won
- 1946 – Texas’ 19th congressional district (D) – won
- 1948 – Texas’ 19th congressional district (D) – won
- 1950 – Texas’ 19th congressional district (D) – won
- 1952 – Texas’ 19th congressional district (D) – won
- 1954 – Texas’ 19th congressional district (D) – won
- 1956 – Texas’ 19th congressional district (D) – won
- 1958 – Texas’ 19th congressional district (D) – won
- 1960 – Texas’ 19th congressional district (D) – won
- 1962 – Texas’ 19th congressional district (D) – won
- 1964 – Texas’ 19th congressional district (D) – won
- 1966 – Texas’ 19th congressional district (D) – won
- 1968 – Texas’ 19th congressional district (D) – won
- 1970 – Texas’ 19th congressional district (D) – won
- 1972 – Texas’ 19th congressional district (D) – won
- 1974 – Texas’ 19th congressional district (D) – won
- 1976 – Texas’ 19th congressional district (D) – won
Charles H. Mahoney
- 1932 – Michigan’s 1st congressional district (R) – lost
Eileen Mahoney
- 1996 – Mississippi’s 4th congressional district (NL) – lost
Elmo J. Mahoney
- 1954 – Kansas’ 6th congressional district (D) – lost
- 1956 – Kansas’ 6th congressional district (D) – lost
- 1958 – Kansas’ 6th congressional district (D) – lost
George Perry Mahoney
- 1952 – United States Senate (Maryland) (D) – lost
- 1956 – United States Senate (Maryland) (D) – lost
- 1968 – United States Senate (Maryland) (AI) – lost
John E. Mahoney
- 1928 – Illinois’ at large congressional district (S) – lost
John J. Mahoney
- 1982 – New Jersey’s 2nd congressional district (R) – lost
Mildred K. Mahoney
- 1994 – New York’s 10th congressional district (CON) – lost
Thomas R. Mahoney
- 1942 – Oregon’s 3rd congressional district (D) – lost
Timothy Edward Mahoney
- 2006 – Florida’s 16th congressional district (D) – won
- 2008 – Florida’s 16th congressional district (D) – lost
Walter T. Mahoney
- 1942 – Iowa’s 8th congressional district (D) – lost
William Mahoney
- 1942 – Minnesota’s 4th congressional district (FL) – lost
William P. Mahoney
- 1956 – Arizona’s 1st congressional district (D) – lost
Willis Mahoney
- 1936 – United States Senate (Oregon) (D) – lost
- 1938 – United States Senate (Oregon) (D) – lost
- 1944 – United States Senate (Oregon) (Special) (D) – lost
Joshua Mahony
- 2018 – Arkansas’ 3rd congressional district (D) – lost
Aloysius J. Maickel
- 1946 – New York’s 3rd congressional district (D) – lost
Edward A (Andy) Maidment
- 2022 – Missouri’s 6th congressional district (L) – lost
Henry Walter Maier
- 1956 – United States Senate (Wisconsin) (D) – lost
Julia Luigia Maietta
- 1948 – Pennsylvania’s 22nd congressional district (D) – lost
- 1958 – Pennsylvania’s 20th congressional district (D) – lost
William Somers Mailliard
- 1948 – California’s 4th congressional district (R) – lost
- 1952 – California’s 4th congressional district (R) – won
- 1954 – California’s 4th congressional district (R) – won
- 1956 – California’s 4th congressional district (R) – won
- 1958 – California’s 4th congressional district (R) – won
- 1960 – California’s 4th congressional district (R) – won
- 1962 – California’s 6th congressional district (R) – won
- 1964 – California’s 6th congressional district (R) – won
- 1966 – California’s 6th congressional district (R) – won
- 1968 – California’s 6th congressional district (R) – won
- 1970 – California’s 6th congressional district (R) – won
- 1972 – California’s 6th congressional district (R) – won
Raymond A. Mailloux
- 1946 – Rhode Island’s 1st congressional district (R) – lost
Bertha H. Mailly
- 1920 – New York’s 16th congressional district (S) – lost
- 1924 – New York’s 16th congressional district (S) – lost
- 1926 – New York’s 16th congressional district (S) – lost
- 1928 – New York’s 17th congressional district (S) – lost
- 1932 – New York’s 16th congressional district (S) – lost
