J
| Jacco | James | Jasmin | Jeran | Jobb | Joscho |
| Jácíček | Jan | Jasper | Jeremy | Jocker | Joska |
| Jack | Jando | Jasson | Jerome | Joe | Joss |
| Jackson | Janek | Jast | Jerry | Joespeed | Joy |
| Jacote | Janitor | Jastik | Jersey | Jogi | Joy |
| Jadran | Jantar | Jatt | Jes | Johns | Juanito |
| Jaén | Jao | Jattu | Jesson | Johny | Jubil |
| Jafis | Jappion | Javor | Jester | Joio | Jücar |
| Jag | Jar | Jaws | Jewel | Joke | Juf |
| Jagge | Jardin | Jazz-band | Jewel | Jokel | Juíz |
| Jago | Jaris | Jean | Jiang | Jokk | Julian |
| Jagor | Jark | Jeck | Jill | Jokkalči | Julo |
| Jagui | Jaroan | Jeep | Jim | Jolek | Jumbo |
| Jakut | Jaron | Jeff | Jimmy | Jon | Jupiter |
| Jalisco | Jarro | Jefferson | Ji-nan | Jonas | Juráš |
| Jalk | Jarvis | Jeffrey | Jinno | Jonáš | Jur-bei |
| Jalult | Jaryk | Jegor | Jinx | Jonatán | Justin |
| Jamai | Jas | Jekyll | Jinx | Joran | Jute |
| Jamal | Jasan | Jemak | Jipi | Jorg | Juvelas |
| Jamb | Jasir | Jemen | Ji-Pin | Jorik | Juwel |
| Jambo-Nico | Jaskier | Jenirox | Jíra | Jorus |