| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| JANNICKE | YAHN-nik-ke (Swedish) | Norwegian, Swedish, Danish | ||
| JANNIK | - | Danish | ||
| JANNIKE | YAHN-ni-ke (Swedish) | Norwegian, Swedish, Danish | ||
| JANNINE | jə-NEEN | English (Rare) | ||
| JANTINE | yahn-TEE-nə | Dutch | ||
| JANTJE | YAHN-tyə | Dutch | ||
| JANUARIUS | - | Ancient Roman | ||
| January | ['dʒænjuəri] | |||
| JANUS | - | Roman Mythology | ||
| JANUSZ | YAH-nuwsh | Polish | ||
| JAPHETH | JAY-fəth (English) | Biblical | ||
| JAPIK | - | Frisian (Rare) | ||
| JAQUAN | - | African American (Modern) | ||
| Jaqueline | ['dʒækli:n] | |||
| JAQUELINE | JAK-ə-leen (English), JAK-ə-lin (English) | English (Modern), Portuguese (Brazilian) |