| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| James | JAYMZ (English) | English, Biblical | ||
| Jamil | - | Arabic | ||
| Jamila | - | Arabic | ||
| Jamillah | - | Arabic | ||
| Jamin | - | Biblical | ||
| Jamshed | - | Persian, Tajik, Persian Mythology | ||
| Jamsheed | - | Persian, Persian Mythology | ||
| Jamshid | - | Persian, Persian Mythology | ||
| Jamyang | - | Tibetan, Bhutanese | ||
| Jan (1) | YAHN (Dutch, Swedish, Norwegian, Polish, German) | Dutch, Swedish, Norwegian, Danish, Czech, Polish, Slovene, German, Catalan | ||
| Jan (3) | - | Medieval English | ||
| Jana (1) | YAH-nah (Dutch, German) | Czech, Slovak, Dutch, German, Slovene, Catalan | ||
| Jana (2) | YAH-nah | Croatian, Serbian | ||
| Janan | - | Arabic | ||
| Jancis | JAN-sis | English (Rare) |