| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Iphigenia | - | Greek Mythology (Latinized) | ||
| Ippolit | - | Russian | ||
| Ippolito | - | Italian | ||
| Iqbal | - | Arabic | ||
| IrÉN | - | Hungarian | ||
| 'Ira' | - | Biblical Hebrew | ||
| Ira (1) | IE-rə (English) | Biblical, English, Hebrew | ||
| Ira (2) | - | Russian | ||
| Irakli | - | Georgian | ||
| Irakliy | - | Russian | ||
| Irati | - | Basque | ||
| Irena | ee-RE-nah (Polish), ee-RAY-nah (Dutch) | Polish, Czech, Slovene, Croatian, Serbian, Dutch, Lithuanian | ||
| Irenaeus | - | Ancient Greek (Latinized) | ||
| Irene | ie-REEN (English), ie-REE-nee (English), ee-RE-ne (Italian), EE-re-ne (Finnish), ee-RE-nu (German) | English, Italian, Spanish, Portuguese, Swedish, Norwegian, Danish, Finnish, German, Ancient Greek (L | ||
| Ireneus | - | Ancient Greek (Latinized) |