Jméno  | aktivní od | aktivní do | |
| Iras | 1984 | 1995 |  |
| Irglová, Markéta | 2002 | | |
| Irish Dew | 1995 | | |
| Isabelle | 1987 | 1994 | |
| Isara | 2010 | | |
| Ivan Hlas Trio | | | |
| Ivaška, Jozef | | | |
| Ivo Preis Trio | | | |
| J. H. Krchovský | 2007 | | |
| J. Kernaševičová & J. Železňák | | | |
| J.A.R. | 1989 | | |
| Jablkoň | 1979 | | |
| Jackson, Wanda | 1956 | | |
| Jahelka, Ivo | 1978 | | |
| Jakabčič, Matúš | | | |
| Jaksi Taksi | 1992 | | |
| Jakub Venzel | 1982 | 1986 | |
| Jamair | | | |
| Jamrich, Dušan | | | |
| Jan Burian & Jaroslav Kořán | 2017 | | |
| Jan Burian Band | 2019 | | |
| Jan Kořínek & Grooves | 2000 | | |
| Jan Spálený Trio | | | |
| Janáčkova filharmonie Ostrava | | | |
| Jananas | 2005 | | |
| Janda Janda | 1988 | 1988 | |
| Janda, Dalibor | 1980 | | |
| Janda, Petr | 1959 | | |
| Jandová, Lada | | | |
| Jandová, Zora | | | |
