- Maxfield, Richard, 1927-19691
- Maxin, Jacob1
- McBride, Robert, 1911-20071
- McCarty, Frank1
- McCracken, Charles2
- McDowell, John Herbert1
- McGee, Gary (Clarinetist)2
- McGrath, William, 1928-1
- McGraw, Cameron1
- McKinley, Andrew2
- McKinney, Mathilde1
- McKnight, Charles, 1949-1
- McPhee, Colin, 1900-19641
- Meier, Gustav, 1929-20161
- Melatti, Nicholas1
- Melby, John, 1941-1
- Melville, Samuel, 1935-19711
- Meneely-Kyder, Sarah, 1945-1
- Menken, Julian1
- Mensch, Homer R1
- Mense, Ruth1
- Merjos, Constantine1
- Merton, Thomas, 1915-19681
- Metropolitan Opera (New York, N.Y.). Chorus1
- Metropolitan Opera (New York, N.Y.). Orchestra1
- Middleton, Jean (Pianist)4
- Middleton, Robert, 1920-20161
- Midtmoen, Forrest1
- Miki, Lily2
- Millay, Edna St. Vincent, 1892-19502
- Miller, Allen (Violinist)1
- Miller, Barbara (Soprano)1
- Miller, Frederick (Cellist)1
- Miller, Jean1
- Miller, Jesse (Double bassist)1
- Miller, Laurel (Mezzo-soprano)2
- Miller, Robert, 1930-198117
- Mills, Charles, 1914-19821
- Mills, Fred, 1935-20092
- Minty, Dorothy1
- Miranda Vargas, Sara1
- Miranda, Tony1
- Mizelle, Dary John, 1940-1
- Mobbs, Edward1
- Moll, Mariquita, 1923-20002
- Monaco, Alfredo del, 1938-1
- Monello, Spartaco V. (Spartaco Vindice), 1909-20091
- Monod, Jacques1
- Monod, Jacques-Louis, 1927-20201
- Monosoff, Sonya1
- Monson, Dale1
- Montecino, Alfonso, 1924-20151
- Monteux, Claude1
- Monteux, Marianne1
- Montlack, Sol1
- Moore, Carman3
- Moore, David, 1938-2
- Moore, Douglas, 1893-196916
- Moore, Kermit1
- Moore, Thomas, 1933-1