| Jacek | Man | Polish Names |
| Jacenty | Man | Polish Names |
| Jadwiga | Woman | Polish Names |
| Jadzia | Woman | Polish Names |
| Jagienka | Woman | Polish Names |
| Jagna | Woman | Polish Names |
| Janek | Man | Polish Names |
| Janina | Woman | Polish Names |
| Janusz | Man | Polish Names |
| Jedrek | Man | Polish Names |
| Jedrzej | Man | Polish Names |
| Jerzy | Man | Polish Names |
| Julietta | Woman | Polish Names |
| Jurek | Man | Polish Names |