Name  | active from | active to | |
| Slobodna Europa | 1989 | | |
| Slovacek, Felix | 1965 | | |
| Slovenska filharmonia | | | |
| Slunecni orchestr | 1994 | | |
| Slunicko | 1990 | | |
| Slut | 1991 | | |
| Smatanova, Zuzana | 2003 | | |
| Smetana, Emma | 2012 | | |
| Smyccova skupina Josefa Dvoracka | | | |
| Sobota, Ludek | | | |
| SOCR | 1926 | | |
| Sodoma, Viktor | 1965 | | |
| Sol nad zlato | 1975 | 1978 | |
| Solomon Bob | 1988 | 1998 | |
| Soukup, Charlie | 1968 | 1988 |  |
| Soukup, Jaroslav | | | |
| Soukup, Ondrej | 1975 | | |
| Soulmates | 2013 | | |
| Soulmen | 1966 | 1968 | |
| Southern Cross | 1995 | | |
| Southpaw | 1996 | 2011 | |
| Spaleny, Jan | 1970 | | |
| Spaleny, Petr | 1964 | | |
| Speakers | 1966 | 1971 | |
| Special | 1981 | 1987 | |
| Spektrum | | | |
| Spiritual kvintet | 1960 | | |
| Spolecenska udalost | 2012 | | |
| Spolecenstvi Bedy Foltyna | | | |
| Sprint | | | |
