| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| I'timad | - | Arabic | ||
| Itri | - | Northern African, Berber | ||
| Ittai | - | Biblical | ||
| Itumeleng | - | Southern African, Tswana | ||
| Itzel | - | Native American, Mayan | ||
| Iudas | - | Biblical Latin | ||
| Iudicael | - | Ancient Celtic | ||
| Iudith | - | Biblical Latin | ||
| Iudocus | - | Ancient Celtic (Latinized) | ||
| Iulia | YOO:-li-a (Ancient Roman) | Romanian, Ancient Roman | ||
| Iuliana | - | Romanian, Ancient Roman | ||
| Iulianus | - | Ancient Roman | ||
| Iulius | YOO:-li-uws | Ancient Roman | ||
| Iunia | - | Ancient Roman, Biblical Latin | ||
| Iunius | - | Ancient Roman |