Name  | active from | active to | |
| Jakabcic, Matus | | | |
| Jaksi Taksi | 1992 | |  |
| Jakub Venzel | 1982 | 1986 | |
| Jamair | | | |
| Jamrich, Dusan | | | |
| Jan Burian & Jaroslav Koran | 2017 | | |
| Jan Burian Band | 2019 | | |
| Jan Korinek & Grooves | 2000 | | |
| Jan Spaleny Trio | | | |
| Janackova filharmonie Ostrava | | | |
| Jananas | 2005 | | |
| Janda Janda | 1988 | 1988 | |
| Janda, Dalibor | 1980 | | |
| Janda, Petr | 1959 | | |
| Jandova, Lada | | | |
| Jandova, Zora | | | |
| Janecky, Jaroslav | | | |
| Janis Joplin Revival | 1996 | | |
| Jankeje, Jan | 1969 | | |
| Janota 1935 | 1994 | | |
| Janota-Fidler-Richter | 1983 | 1985 | |
| Janota, Oldrich | 1970 | 2024 | |
| Janousek-Vondrak | | | |
| Janousek, Slavek | 1970 | | |
| Janouskova, Atka | 1950 | | |
| Janu, Petra | 1972 | | |
| Jarmark | 1986 | | |
| Jarret | 1992 | | |
| Jasna paka | 1981 | 1984 | |
| Javorsky Vladimir | | | |
