| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Ivonette | - | English (Rare) | ||
| IzidÓRa | - | Hungarian (Rare) | ||
| Jaakob | - | Finnish (Rare), Estonian (Rare) | ||
| Jaakoppi | YAH:-kop-pee | Finnish (Rare) | ||
| Jacenty | yah-TSEN-ti | Polish (Rare) | ||
| Jacinda | - | English (Rare) | ||
| Jacinth | JAY-sinth, JAS-inth | English (Rare) | ||
| Jacintha | yah-SIN-tah | Dutch (Rare) | ||
| Jackalyn | - | English (Rare) | ||
| Jacquette | - | French (Rare) | ||
| Jae | JAY | English (Rare) | ||
| Jaki | JAK-ee | English (Rare) | ||
| Jakki | JAK-ee | English (Rare) | ||
| Jamaar | jə-MAHR | African American (Rare) | ||
| Jancis | JAN-sis | English (Rare) |