| Name | Language | Saint | Meaning | Origin of the name | Celebration |
|---|---|---|---|---|---|
| Jackeline | Français | James the Greater, Apostle | 25 of July | ||
| Jacqueline | Français | James the Greater, Apostle | 25 of July | ||
| Jaquelina | Español | James the Greater, Apostle | 25 of July | ||
| Javiera | Español | Saint Francis Xavier | El francés | italiano | 3 of December |
| Joana | Español | Saint Joan of Valois | 4 of February | ||
| Joanaina | Català | Saint Joan of Valois | 4 of February | ||
| Joaquina | Español | Saint Joachina de Vedruna | 22 of May | ||
| Johana | English | Saint Joan of Valois | 4 of February | ||
| Johanna | English | Saint Joan of Valois | 4 of February | ||
| Jojana | Deutsch | Saint Joan of Valois | 4 of February | ||
| Josefa | Español | Blessed Josepha Naval Girbés | 24 of February | ||
| Josefina | Español | Saint Josefina Bakhita | 8 of February | ||
| Juana | Español | Saint Joan of Valois | 4 of February | ||
| Juani | Español | Saint Joan of Valois | 4 of February | ||
| Juanita | Español | Saint Joan of Valois | 4 of February | ||
| Jucunda | Español | Saint Jucunda | 25 of November | ||
| Judit | Español | Saint Judith | Blessed be God | Hebrew | 30 of December |
| Judit | Català | Saint Judith | Blessed be God | Hebrew | 30 of December |
| Judith | Español | Saint Judith | Blessed be God | Hebrew | 30 of December |
| Juli | Español | Saint Julia Billiart | 8 of April | ||
| Julia | Español | Saint Julia Billiart | 8 of April | ||
| Juliana | Español | Saint Juliana of Nicodemia | 16 of February | ||
| Juliet | Français | Saint Julia Billiart | 8 of April | ||
| Julieta | Español | Saint Julia Billiart | 8 of April | ||
| Julieth | English | Saint Julia Billiart | 8 of April | ||
| Justina | Español | Saint Justina vírgen y mártir | 30 of November | ||
| Juta | Español | Saint Jutta of Huy | 13 of January | ||
| Jutta | Deutsch | Saint Judith | Blessed be God | Hebrew | 30 of December |