H. Adolph Muller
- 1920 – Virginia’s 3rd congressional district (R) – lost
John Muller
- 1966 – New York’s 29th congressional district (CON) – lost
John P. Muller
- 1930 – New York’s 25th congressional district (S) – lost
Anne Marie Mulligan
- 1998 – Pennsylvania’s 2nd congressional district (R) – lost
Mark Mulligan
- 2008 – Florida’s 2nd congressional district (R) – lost
Matthew S. Mulligan
- 1994 – United States Senate (Vermont) (I) – lost
- 1998 – Vermont’s at large congressional district (Vermont Grassroots) – lost
Kevin Mullin
- 2022 – California’s 15th congressional district (D) – won
Markwayne Mullin
- 2012 – Oklahoma’s 2nd congressional district (R) – won
- 2014 – Oklahoma’s 2nd congressional district (R) – won
- 2016 – Oklahoma’s 2nd congressional district (R) – won
- 2018 – Oklahoma’s 2nd congressional district (R) – won
- 2020 – Oklahoma’s 2nd congressional district (R) – won
- 2022 – United States Senate (Special) (Oklahoma) (R) – won
Warren D. Mullin
- 1934 – Pennsylvania’s 5th congressional district (S) – lost
Ralph Mullinger
- 1982 – Pennsylvania’s 1st congressional district (L) – lost
- 2000 – Ohio’s 4th congressional district (L) – lost
Thomas E. Mullins
- 2010 – New Mexico’s 3rd congressional district (R) – lost
Barbara Jo Mullis
- 2014 – South Carolina’s 3rd congressional district (D) – lost
Robert E. Mullock
- 2006 – New Jersey’s 2nd congressional district (Preserve Green Space) – lost
William Patrick Mulloy II
- 1984 – Kentucky’s 4th congressional district (D) – lost
John P. Mulrenan
- 1930 – Pennsylvania’s 1st congressional district (D) – lost
Abraham Jacob Multer
- 1948 – New York’s 14th congressional district (D, R, Liberal) – won
- 1950 – New York’s 14th congressional district (D, Liberal) – won
- 1952 – New York’s 13th congressional district (D, Liberal) – won
- 1954 – New York’s 13th congressional district (D, Liberal) – won
- 1956 – New York’s 13th congressional district (D, Liberal) – won
- 1958 – New York’s 13th congressional district (D, Liberal) – won
- 1960 – New York’s 13th congressional district (D) – won
- 1962 – New York’s 13th congressional district (D, Liberal) – won
- 1964 – New York’s 13th congressional district (D) – won
- 1966 – New York’s 13th congressional district (D) – won
John Michael Mulvaney
- 2010 – South Carolina’s 5th congressional district (R) – won
- 2012 – South Carolina’s 5th congressional district (R) – won
- 2014 – South Carolina’s 5th congressional district (R) – won
- 2016 – South Carolina’s 5th congressional district (R) – won
M. F. Mulvaney
- 1938 – Nebraska’s 2nd congressional district (R) – lost
Hugh Nathaniel Mulzac
- 1952 – New York’s 5th congressional district (American Labor) – lost
Walter Mann Mumma
- 1950 – Pennsylvania’s 18th congressional district (R) – won
- 1952 – Pennsylvania’s 16th congressional district (R) – won
- 1954 – Pennsylvania’s 16th congressional district (R) – won
- 1956 – Pennsylvania’s 16th congressional district (R) – won
- 1958 – Pennsylvania’s 16th congressional district (R) – won
- 1960 – Pennsylvania’s 16th congressional district (R) – won
Carl Mumpower
- 2008 – North Carolina’s 11th congressional district (R) – lost
Robert Muncaster
- 1964 – California’s 17th congressional district (R) – lost
Ralph M. Muncy
- 1962 – Michigan’s at large congressional district (SL) – lost
- 1966 – United States Senate (Michigan) (SL) – lost
- 1968 – Michigan’s 2nd congressional district (SL) – lost
Cara D. Mund
- 2022 – North Dakota’s at large congressional district (I) – lost
James I. Mundell
- 1936 – Connecticut’s 2nd congressional district (Union) – lost
Karl Earl Mundt
- 1936 – South Dakota’s 1st congressional district (R) – lost
- 1938 – South Dakota’s 1st congressional district (R) – won
- 1940 – South Dakota’s 1st congressional district (R) – won
- 1942 – South Dakota’s 1st congressional district (R) – won
- 1944 – South Dakota’s 1st congressional district (R) – won
- 1946 – South Dakota’s 1st congressional district (R) – won
- 1948 – United States Senate (South Dakota) (R) (won)
- 1954 – United States Senate (South Dakota) (R) – won
- 1960 – United States Senate (South Dakota) (R) – won
- 1966 – United States Senate (South Dakota) (R) – won
Francis P. Mundy
- 1978 – New York’s 36th congressional district (CON) – lost
Keith Mundy
- 2016 – Ohio’s 16th congressional district (D) – lost
Roy Mundy
- 1960 – Washington’s 4th congressional district (D) – lost
Frank Munger, Sr.
- 1930 – Minnesota’s 4th congressional district (D) – lost
William L. Munger
- 1946 – New York’s 3rd congressional district (Liberal) – lost
John R. Muniz
- 2018 – New Jersey’s 8th congressional district (R) – lost
Diana Muniz
- 2010 – New York’s 10th congressional district (R) – lost
Cindy Munkittrick
- 1992 – Florida’s 5th congressional district (I) – lost
Charles Munn
- 1942 – Minnesota’s 3rd congressional district (FL) – lost
James Munn
- 1966 – Washington’s 7th congressional district (R) – lost
Shante Munns
- 2022 – Florida’s 11th congressional district (D) – lost
Carlos E. Munoz
- 1996 – New Jersey’s 13th congressional district (R) – lost
Maria Elizabeth Munoz
- 1988 – United States Senate (California) (PF) – lost
Susan Grimes Munsell
- 1998 – Michigan’s 8th congressional district (R) – lost
Sue Munsey
- 1994 – Florida’s 15th congressional district (D) – lost
Edward W. Munster
- 1992 – Connecticut’s 2nd congressional district (R) – lost
- 1994 – Connecticut’s 2nd congressional district (R) – lost
- 1996 – Connecticut’s 2nd congressional district (R) – lost
Melvin C. Muntzing
- 1944 – West Virginia’s 2nd congressional district (R) – lost
Le Roy Munyon
- 1924 – Iowa’s 8th congressional district (D) – lost
John Omar Muotka
- 1976 – Michigan’s 19th congressional district (AI) – lost
Robert C. Murchie
- 1926 – United States Senate (New Hampshire) (D) – lost
H. C. Murchison
- 1928 – Tennessee’s 9th congressional district (R) – lost
Brett Murdock
- 2016 – California’s 39th congressional district (D) – lost
John Robert Murdock
- 1936 – Arizona’s at large congressional district (D) – won
- 1938 – Arizona’s at large congressional district (D) – won
- 1940 – Arizona’s at large congressional district (D) – won
- 1942 – Arizona’s at large congressional district (D) – won
- 1944 – Arizona’s at large congressional district (D) – won
- 1946 – Arizona’s at large congressional district (D) – won
- 1948 – Arizona’s 1st congressional district (D) – won
- 1950 – Arizona’s 1st congressional district (D) – won
- 1952 – Arizona’s 1st congressional district (D) – lost
Norman A. Murdock
- 1984 – Ohio’s 1st congressional district (R) – lost
