| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| JĘDrzej | YEND-zhay | Polish | ||
| JÁKup | - | Faroese | ||
| JÁN | - | Slovak | ||
| JÓAnnes | - | Faroese | ||
| JÓHannes | - | Icelandic, Faroese | ||
| JÓN | - | Icelandic, Faroese | ||
| JÓRunnr | - | Ancient Scandinavian | ||
| JÓZef | YUW-zef | Polish | ||
| JÓZefa | yuw-ZEF-ah | Polish | ||
| JÓZefina | - | Polish | ||
| JÔNatas | - | Portuguese | ||
| JØRg | - | Danish, Norwegian | ||
| JØRgen | - | Danish, Norwegian | ||
| JØRn | - | Danish, Norwegian | ||
| JÖRan | - | Swedish |