| Lange, Jan | Jan Lange | Composer | 1954 | 1 | |
| Lukala, Joona | Joona Lukala | Composer | 2002 | 1 | |
| Lutz, Dietrich | Dietrich Lutz | Composer | 2005 - 2006 | 3 | |
| Lundeberg, Karl Fredrik | Karl Fredrik Lundeberg | Composer | 2004 | 1 | |
| Lindquist, Frank | Frank Lindquist | Composer | 1988 | 1 | |
| Leyton-Brown, Allison, | Allison Leyton-Brown | Composer | 2011 | 1 | |
| Laten, Fausta | Fausta Laten | Composer | 2007 | 1 | |
| Lasson, Per, | Per Lasson | Composer | 1894 - 1928 | 2 | |
| Lange-Müller, Peter Erasmus, | Peter Erasmus Lange-Müller | Composer | 1897 - 1924 | 3 | 1 |
| Lange, Gustav Fr., | Gustav Fr. Lange (Gustav Fr. Lange) | Composer | 1901 - 1902 | 2 | |
| Lie, Sigurd, | Sigurd Lie | Composer | 1905 - 1911 | 4 | |
| Lindvig, Kyrre Tromm, | Kyrre Tromm Lindvig | Composer | 2000 | 1 | |
| Lunaris, -, | - Lunaris | Composer | 2003 - 2004 | 2 | |
| LoMsk, -, | - LoMsk | Composer | 2006 | 1 | |
| Lillo-Stenberg, Lars, | Lars Lillo-Stenberg | Composer | 2006 | 1 | |
| Lortzing, Albert, | Albert Lortzing | Composer | 1917 | 1 | |
| Le Feuvre, Guy, | Guy Le Feuvre | Composer | 1917 | 1 | |
| Linkola, Jukka | Jukka Linkola | Composer | 1981 | 1 | |
| Levine, Julia | Julia Levine | Composer | 1928 - 1929 | 2 | |
| Lammers, Thorvald | Thorvald Lammers | Composer | 1983 | 1 | |
| Lehtonen, Jouni | Jouni Lehtonen | Composer | 1995 | 1 | |
| Lloyd Webber , Andrew | Andrew Lloyd Webber | Composer | 1987 | 1 | |
| Levaillant, Denis | Denis Levaillant | Composer | 1991 - 1993 | 2 | |
| Lekkas, Dimitris | Dimitris Lekkas | Composer | 1991 | 1 | |
| Lang, Elaine | Elaine Lang | Composer | 1980 | 1 | |
| London, Frank | Frank London | Composer | 1994 - 1995 | 4 | |
| Lemêtre, Jean-Jacques | Jean-Jacques Lemêtre | Composer | 1995 - 2004 | 2 | |
| Lipka, Krzysztof | Krzysztof Lipka | Composer | 1998 | 1 | |
| Lindgren, Kurt | Kurt Lindgren | Composer | 1967 - 1968 | 3 | |
| Luft, Gerd | Gerd Luft | Composer | 1965 | 1 | |
| L. Berman, Norman | Norman L. Berman | Composer | 2002 | 1 | |
| Lindstedt, Janne | Janne Lindstedt | Composer | 1997 | 1 | |
| Li Calzi, Giorgio | Giorgio Li Calzi | Composer | 2001 | 2 | |
| Larsson, Magnus | Magnus Larsson | Composer | 2003 | 1 | |
| Lupin, Larsen | Larsen Lupin | Composer | 2003 | 1 | |
| Lackerschmid, Wolfgang | Wolfgang Lackerschmid | Composer | 2001 | 1 | |
| Lorenc, Michał | Michał Lorenc | Composer | 2009 - 2012 | 4 | |
| Luczak , Robert | Robert Luczak | Composer | 2005 - 2007 | 2 | |
| Lazăr , George | George Lazăr | Composer | 1985 | 1 | |
| Lászlóffy, Zsolt | Zsolt Lászlóffy | Composer | 2008 | 1 | |
| Lauzon, Jani | Jani Lauzon | Composer | 2007 | 1 | |
| Lahooni, Homavand | Homavand Lahooni | Composer | 2007 | 1 | |
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