| JR | ritzkat |
| Jakob | Justus Ruppel |
| JanicX | Jan Nicolin |
| Jens | Jens Peschke |
| Joe_Pat | Björn Goetze |
| Joerg | Joerg Luengen |
| John | John Wyatt |
| Jürgen | Jürgen |
| jakre | Jan Kreßner |
| jan | Jan Klemm |
| jb :-) | Jan-Peter Homann |
| jeff | Jeff Burns |
| jens | Jens F. Huenerberg |
| jens_w | Jens Westphal |
| jesis | Josephine Bosma |
| jfuhrmann | Juergen Fuhrmann |
| jhauben | Jay hauben |
| jill | jillian-beth stamos-kaschke |
| jk | |
| jkn | Juergen Knaack |
| jlaeby | Jean-Luc Aeby |
| jnwester | Joern Westermann |
| jodi | joan & dirk |
| joerg | Joerg Kielkowski |
| jofa | Joachim Faulhaber |
| john | Reiner Jonas |
| johnnie :-) | Matthias Stieler |
| jonesser | jon esser |
| jorell | julia orell |
| joseph :-) | Joseph Weizenbaum |
| jp_ti | Jeremy Pope |
| jrichter | Joerg Richter |
| jsbilger | Jakob Bilger |
| jsjohnson | Jeffrey Scott Johnson |
| ju | Stefan Just |
| julien | Julien Kwen |
| julo | Julo |
| jung | Winfried Jung |
| jungle | Jungle World |
| jungle.world | Jungle World |
