- Manchin, A. James, 1927-20031
- Mantle, Mickey, 1931-19951
- Markey, Edward J.1
- Maxwell Air Force Base (Ala.)1
- McCloskey, Frank1
- McCloskey, Paul N., 1927-1
- McEwen, Bob, 1950-1
- Mikulski, Barbara1
- Moffett, Toby, 1944-1
- Mollohan, Bob1
- Mondale, Walter F., 1928-1
- Montgomery, G. V. (Gillespie V.)1
- Morris, John W., 1921-20131
- Nagle, David R. (David Ray), 1943-1
- National Coal Council (U.S.)1
- National Council of the Churches of Christ in the United States of America1
- National Fire Protection Association1
- National Historic Landmarks Program (U.S.)1
- National Lampoon, Inc.1
- National Science Foundation1
