| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Jillie | JIL-ee | English | ||
| Jilly | JIL-ee | English | ||
| Jim | JIM | English | ||
| Jimi | JIM-ee | English | ||
| Jimmie | JIM-ee | English | ||
| Jimmy | JIM-ee | English | ||
| Jinny | JIN-ee | English | ||
| Jirair | - | Armenian | ||
| Jo | JO (English) | English, German, Dutch | ||
| JoŠT | - | Slovene | ||
| JoŽE | YAW-zhe | Slovene | ||
| JoŽEf | YAW-zhef | Slovene | ||
| JoŽEfa | YAW-zhe-fah | Slovene | ||
| JoŽIca | - | Slovene, Croatian | ||
| JoËL | zho-EL (French) | French, Dutch |