| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Iakovu | - | Old Church Slavic | ||
| Ibolya | - | Hungarian | ||
| Ida | IE-də (English), EE-dah (German, Swedish, Danish, Dutch, Italian) | English, German, Swedish, Norwegian, Danish, Dutch, Italian, Spanish, Portuguese, Hungarian, Slovene | ||
| Ieva | - | Lithuanian, Latvian | ||
| Igerna | - | Arthurian Romance | ||
| IgnÁC | EEG-nahts (Hungarian) | Hungarian, Czech | ||
| Ignas | - | Lithuanian | ||
| Igraine | - | Arthurian Romance | ||
| IldÓ | - | Hungarian | ||
| Ildi | - | Hungarian | ||
| IldikÓ | - | Hungarian | ||
| Ili | - | Hungarian | ||
| Ilia | eel-YAH (Russian) | Georgian, Russian, Bulgarian, Old Church Slavic | ||
| Ilike | - | Hungarian | ||
| Ilka | - | Hungarian |