| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Ioses | - | Biblical Greek | ||
| Iosias | - | Biblical Latin, Biblical Greek | ||
| Iosif | ee-O-seef (Russian), YO-seef (Romanian) | Russian, Romanian, Greek | ||
| Iosifu | - | Old Church Slavic | ||
| Iosue | - | Biblical Latin | ||
| Iou | - | Biblical Greek | ||
| Ioubal | - | Biblical Greek | ||
| Ioudas | - | Biblical Greek | ||
| Ioudith | - | Biblical Greek | ||
| Iounia | - | Biblical Greek | ||
| Iovianus | - | Ancient Roman | ||
| Iovis | - | Roman Mythology | ||
| Iovita | - | Ancient Roman | ||
| Ipati | - | Russian (Rare) | ||
| Ipatiy | - | Russian (Rare) |