- Mabley, Jackie "Moms"
- Macy, Rowland H.
- Madison, Dolley Payne Todd
- Madison, James
- Mailer, Norman
- Mann, Horace
- Mantle, Mickey
- Marciano, Rocky
- Marshall, George C.
- Marshall, Thomas Riley
- Marshall, Thurgood
- Martin, Billy
- Martin, Joseph W., Jr.
- Marvin, Lee
- Marx, Louis
- Masterson, Bat
- Mayer, Oscar
- McAuliffe, Christa
- McCormack, John
- McDonald, Richard
- McGovern, George
- McHenry, James
- McKean, Thomas
- McKenna, Joseph
- McKinley, Ida Saxton
- McKinley, William
- McManus, George
- McNamara, Robert
- Melville, Herman
- Middleton, Arthur
- Mifflin, Thomas
- Mineo, Sal
- Monroe, Elizabeth Kortright
- Monroe, James
- Moody, William Henry
- Moore, Mary Tyler
- Morgan, Frank
- Morgan, J. P.
- Morse, Samuel F. B.
- Morton, Levi P.
- Muhlenberg, Frederick
