| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Izolda | ee-ZAWL-dah (Polish) | Georgian, Polish | ||
| Izotz | - | Basque | ||
| Izrail | - | Judeo-Christian Legend | ||
| Izudin | - | Bosnian | ||
| Izumi | ee-zoo-mee | Japanese | ||
| Izydor | ee-ZI-dawr | Polish | ||
| Izzy | IZ-ee | English | ||
| JĘDrzej | YEND-zhay | Polish | ||
| JÁKup | - | Faroese | ||
| JÁN | - | Slovak | ||
| JÓAnnes | - | Faroese | ||
| JÓHannes | - | Icelandic, Faroese | ||
| JÓN | - | Icelandic, Faroese | ||
| JÓRunnr | - | Ancient Scandinavian | ||
| JÓZef | YUW-zef | Polish |