| Josseline | | - | French | |
| JosuÉ | | ho-SWE (Spanish), zho-zoo-E (Portuguese) | French, Spanish, Portuguese | |
| Jourdain | | - | French | |
| JudicaËL | | zhoo-dee-ka-EL (French) | French, Breton | |
| Judith | | JOO-dith (English), zhoo-DEET (French), YOO-dit (German) | English, Jewish, French, German, Spanish, Biblical | |
| Jules (1) | | ZHUYL | French | |
| Juliane | | yoo-lee-AH-nə (German) | French, German | |
| Julie | | zhuy-LEE (French), YOO-lee-e (Danish), YUW-lye (Czech), JOO-lee (English) | French, Danish, Norwegian, Czech, English, German, Dutch, Spanish, Portuguese | |
| Julien | | zhoo-lee-AWN | French | |
| Julienne | | zhoo-lee-EN | French | |
| Juliette | | zhoo-lee-ET | French | |
| Juste | | - | French | |
| Justin | | JUS-tin (English), zhoo-STEN (French) | English, French, Slovene | |
| Justine | | zhuy-STEEN (French), jus-TEEN (English) | French, English, Dutch, German | |
| Karine (1) | | ka-REEN | French | |