Name  | active from | active to | |
| Laiferova, Marcela | 1964 | | |
| Lakome Barky | 2001 | | |
| Lamaci zapesti | | | |
| Lament | 2022 | | |
| Landa, Daniel | 1987 | |  |
| Landmine Spring | | | |
| Langerova, Aneta | 2000 | | |
| Lanugo | 2006 | | |
| Lapcikova, Zuzana | | | |
| Laputa | 2000 | 2004 | |
| Lasica - Satinsky | 1961 | | |
| Lasica, Milan | 1961 | | |
| Laufer, Josef | 1960 | | |
| Laura a jeji tygri | 1985 | | |
| LBT | 1982 | 1983 | |
| Le Chavendar | 2000 | | |
| Leaders! | 2007 | | |
| Ledecky, Janek | 1982 | | |
| Lego | 1988 | 1989 | |
| Lehotsky, Jan | 1966 | | |
| Lemon Nashville Orchestra | 1988 | | |
| Lenk, Jaroslav Samson | | | |
| Leporelo | 2009 | 2014 | |
| Lescenko, Lev | | | |
| Let | 1986 | 1988 | |
| Letadlo | 1981 | 1983 | |
| Letavice | 1970 | | |
| Letni kapela | 2021 | | |
| Letokruhy | 1977 | | |
| Lety mimo | 1990 | | |
