| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Ian | EE-ən (English) | Scottish, English | ||
| Ianuarius | - | Ancient Roman | ||
| Iapheth | - | Biblical Greek | ||
| Iared | - | Biblical Latin, Biblical Greek | ||
| Iason | - | Greek Mythology, Ancient Greek, Greek, Biblical Greek, Biblical Latin | ||
| Ibragim | - | Chechen, Ossetian | ||
| Ibraheem | - | Arabic | ||
| Ibrahim | - | Arabic, Malay, Indonesian | ||
| Ibrahima | - | Western African | ||
| Ibtihaj | - | Arabic | ||
| Ibtisam | - | Arabic | ||
| Ichabod | IK-ə-bahd (English) | Biblical | ||
| Ida | IE-də (English), EE-dah (German, Swedish, Danish, Dutch, Italian) | English, German, Swedish, Norwegian, Danish, Dutch, Italian, Spanish, Portuguese, Hungarian, Slovene | ||
| Idida | - | Biblical Latin | ||
| Idir | - | Northern African, Berber |