| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Jin | - | Chinese | ||
| Jinan | - | Arabic | ||
| JindŘIch | - | Czech | ||
| Jing | - | Chinese | ||
| Jingyi | - | Chinese | ||
| Jitka | - | Czech | ||
| Jo | JO (English) | English, German, Dutch | ||
| JoŠKo | - | Croatian | ||
| JoŽIca | - | Slovene, Croatian | ||
| JoËL | zho-EL (French) | French, Dutch | ||
| JoËLle | zho-EL | French | ||
| Joab | JO-ab (English) | Biblical | ||
| Joachim | zho-a-KEEM (French), YO-ah-khim (German), yo-AH-khim (German), yaw-AH-kheem (Polish), JO-ə-kim (English) | French, German, Polish, Judeo-Christian Legend | ||
| Joakim | YO-ah-kim (Swedish), YO-ah-keem (Finnish) | Swedish, Norwegian, Danish, Finnish, Serbian, Macedonian | ||
| Joan (2) | joo-AHN (Catalan), zhoo-AHN (Catalan) | Catalan, Occitan |