- Magnuson, Warren G. (Warren Grant), 1905-19891
- Mann, James R. (James Robert), 1920-20101
- McFall, John J.2
- McMillan, John L. (John Lanneau), 1898-19771
- Meany, George, 1894-19801
- Melcher, John, 1924-20181
- Miami Tribe of Oklahoma2
- Mikva, Abner J.1
- Mollohan, Bob5
- Moore, Arch A., Jr. (Arch Alfred), 1923-20152
- Morton, Rogers C. B. (Rogers Clark Ballard), 1914-19791
- Mosher, Charles Adams, 1906-19841
- Moss, John E. (John Emerson), 1915-19972
- Murphy, John M., 1926-20152
- Murtha, John P.2
- Muscogee (Creek) Nation, Oklahoma3
- Nader, Ralph1
- Nakasone, Yasuhiro, 1918-20192
- National Association for the Advancement of Colored People1
- National Coal Association2
