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- Levenson, Emanuel1
- Levenson, Michael3
- Levey, Lauren1
- Levi, Nannette, 1926-20071
- Levin, Monroe, 1923-1
- Levine, Gilbert, 1948-1
- Levine, Jeffrey1
- Levine, Jesse, 1940-20081
- Levine, Julius1
- Levitan, Sam, 1913-20031
- Levy, Edward, 1929-20021
- Levy, Frank, 1930-20171
- Levy, Gerardo1
- Lewis, Robert Hall, 1926-19961
- Ley, Salvador, 1907-19851
- Li, Junpan1
- Li, Lili, 1915-20052
- Li, Zhuozhuo, 1905-19901
- Lian hua ying ye gong si4
- Libove, Charles, 1926-1
- Lichter, Bonnie1
- Lieberman, Barbara1
- Lin, Chuchu, 1904-19721
- Lindsey, Mort, 1923-20123
- List, Garrett1
- Liu, Qiong, 1913-20021
- Lockwood, Normand, 1906-20021
- Lora, Antonio, 1899-19651
- Lora, Edna Elsa1
- Lord, Chip2
- López, Elías, 1937-1
- Lu, Hanzhang2
- Lucarelli, Bert1
- Luening, Otto, 1900-19968
- Luo, Ming1
- Luo, Mingyou4
- MacDowell, Edward, 1860-19082
- Macbride, David1
- Macchia, Salvatore1
- Makas, Anthony1
- Mann, Fania1
- Mantsoe, Vincent1
- Marling, Terence1
- Marlowe, Anthony1
- Marx, Josef, 1913-19782
- Marx, Joseph, 1882-19641
- Maslanka, David, 1943-20171
- Mason, Daniel Gregory, 1873-19531
- Masselos, William1
- Maxfield, Richard, 1927-19691
- McBride, Robert, 1911-20071
- McClure, Joan, 1914-20051
- McCracken, Charles1
- McDowell, John Herbert1
- McGee, Gary (Clarinetist)1
- McGraw, Cameron1
- McKnight, Charles, 1949-1
- Mei, Xi, 1914-19831
- Menken, Julian1