| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Iovianus | - | Ancient Roman | ||
| Iovis | - | Roman Mythology | ||
| Iovita | - | Ancient Roman | ||
| Ipati | - | Russian (Rare) | ||
| Ipatiy | - | Russian (Rare) | ||
| Iphigenia | - | Greek Mythology (Latinized) | ||
| Ippolit | - | Russian | ||
| Ippolito | - | Italian | ||
| Iqbal | - | Arabic | ||
| IrÉN | - | Hungarian | ||
| Ira (1) | IE-rə (English) | Biblical, English, Hebrew | ||
| Ira (2) | - | Russian | ||
| Irakli | - | Georgian | ||
| Irakliy | - | Russian | ||
| Irati | - | Basque |