| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Italus | - | Roman Mythology | ||
| Itri | - | Northern African, Berber | ||
| Itsuki | ee-tsoo-kee | Japanese | ||
| Itumeleng | - | Southern African, Tswana | ||
| Itzel | - | Native American, Mayan | ||
| Itziar | - | Basque, Spanish | ||
| Iucunda | - | Late Roman | ||
| Iudicael | - | Ancient Celtic | ||
| Iudocus | - | Ancient Celtic (Latinized) | ||
| Iulia | YOO:-li-a (Ancient Roman) | Romanian, Ancient Roman | ||
| Iulian | - | Romanian | ||
| Iuliana | - | Romanian, Ancient Roman | ||
| Iulianus | - | Ancient Roman | ||
| Iuliu | - | Romanian | ||
| Iulius | YOO:-li-uws | Ancient Roman |