| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 481 | Johnny | French | Variant of the Hebrew John: Jehovah has been gracious; has shown favor. | M | |
| 482 | Johnson | French | Variant of the Hebrew John: Jehovah has been gracious; has shown favor. | M | |
| 483 | Jolie | French | Cheerful; pretty. | M | |
| 484 | Jon | French | Variant of John or abbreviation of Jonathan: 'Jehovah has been gracious; has shown favor.' Sometimes used in the French fashion hyphenated with a second name like Jon-Carlo or Jon-Paul. | M | |
| 485 | Jonn | French | Variant of John or abbreviation of Jonathan 'Jehovah has been gracious; has shown favor.'. | M | |
| 486 | Jonnie | French | Variant of John or abbreviation of Jonathan 'Jehovah has been gracious; has shown favor.'. | M | |
| 487 | Jorden | French | Variant of Hebrew Jordan 'down flowing.'. | M | |
| 488 | Jordon | French | Variant of Hebrew Jordan 'down flowing.'. | M | |
| 489 | Jourdan | French | Variant of Hebrew Jordan 'down flowing.'. | M | |
| 490 | Joy | French | Rejoicing. | M | |
| 491 | Joyanna | French | Rejoicing. | M | |
| 492 | Jules | French | Youthful. The French form of Julius. Famous Bearer: Science fiction writer Jules Verne (1828-1905). | M | |
| 493 | Julian | French | Youthful. | M | |
| 494 | Julien | French | Jove's child. | M | |
| 495 | Julius | French | Jove's child. | M | |
| 496 | Jullien | French | Youthful. | M | |
| 497 | Kaarle | French | Strong and masculine. | M | |
| 498 | Kaarlo | French | Strong and masculine. | M | |
| 499 | Kalle | French | Strong and masculine. | M | |
| 500 | Kalman | French | Strong and masculine. | M | |