- Lateiner, Isidor, 1930-20052
- Laufer, Edward, 1938-20141
- Lavanne, Antonia4
- Lawergren, Bo1
- Lawrence, D. H. (David Herbert), 1885-19302
- Lawson, Danyal1
- Lawton, David1
- Layton, Billy Jim, 1924-20041
- Lazarof, Henri1
- Lazaroff, Rick1
- LePage, Pierrette, 1939-1
- Leadbelly, 1885-19491
- Led Zeppelin (Musical group)3
- Lee, Noël, 1924-20132
- Lees, Benjamin, 1924-20101
- Legrand, Michel, 1932-20191
- Lehrer, Tom, 1928-1
- Leichtling, Avrohom1
- Leifur Thórarinsson, 1934-19981
- Lein, David2
- Lenel, Ludwig1
- Lennon, John, 1940-198011
- Lentz, Daniel, 1942-1
- Leonards, Francis2
- Leoncavallo, Ruggiero, 1858-19191
- Leopardi, Giacomo, 1798-18372
- Lerew, Donna1
- Lerner, Bennett1
- Lesbines, Tele1
- Lessard, John, 1920-20032
- Levenson, Emanuel1
- Levenson, Michael6
- Levey, Lauren1
- Levi, Nannette, 1926-20072
- Levin, Monroe, 1923-1
- Levin, Robert D1
- Levine, Gilbert, 1948-1
- Levine, James, 1943-20211
- Levine, Jeffrey1
- Levine, Jesse, 1940-20081
- Levine, Julius2
- Levitan, Sam, 1913-20031
- Levy, Arthur1
- Levy, Edward, 1929-20021
- Levy, Frank, 1930-20171
- Levy, Gerardo5
- Lewin Richter, Andrés, 1937-1
- Lewis, Peter Tod1
- Lewis, Robert Hall, 1926-19961
- Ley, Salvador, 1907-19852
- Lhasa Orchestra1
- Li, Bai, 701-7621
- Libove, Charles, 1926-6
- Lichter, Bonnie1
- Liddell, Claire1
- Lie, Trygve, 1896-19681
- Lieberman, Barbara1
- Liebermann, Rolf, 1910-19991
- Liebling, Joseph1
- Ligeti, György, 1923-20062