- Lachner, Franz Paul
- Lacombe, Louis
- LaForge, Frank
- Lahoz y Otal, Florencio
- Lalo, Édouard
- Lang, Josephine
- Lange-Müller, Peter Erasmus
- Lange, Gustav
- Lange, Gustav Fredrik
- Laserna, Blas de
- Lassen, Eduard
- Lassus, Rolande de
- Lavigne, Ernest
- Lawes, Henry
- Lawes, William
- Lawson, Peter W.F.
- Lazzari, Sylvio
- Lecocq, Charles
- Legrenzi, Giovanni
- Leguerney, Jacques
- Lehár, Franz
- Lehmann, Amelia
- Lehmann, Liza
- Leichtling, Alan
- Leitner, Ernst Ludwig
- Lekberg, Sven
- Leo, Leonardo
- Leoncavallo, Ruggiero
- Leoni, Franco
- Leroux, Xavier
- Leveridge, Richard
- Lewandowsky, Max
- Lichey, Reinhold
- Liddle, Samuel
- Linley, Thomas
- Lipatti, Dinu
- Lippold, Max
- Lisle, Bernard de
- Liszt, Franz
- Literes, Antonio
- Litolff, Henry Charles
- Lleó-Balbastre, Vicente
- Loder, Edward J.
- Loeffler, Charles Martin Tornov
- Loewe, Johann Carl Gottfried
- López Amagro, Antonio
- Lori, Arcangelo
- Lortzing, Gustav Albert
- Lotti, Antonio
- Luca, Sergio de
- Lully, Jean-Baptiste
- Luna, Pablo
