| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Ili | - | Hungarian | ||
| Ilia | eel-YAH (Russian) | Georgian, Russian, Bulgarian, Old Church Slavic | ||
| Iliana | - | Greek, Bulgarian | ||
| Ilie | - | Romanian | ||
| Ilija | - | Macedonian, Serbian, Croatian, Bulgarian | ||
| Ilike | - | Hungarian | ||
| Ilina | - | Bulgarian, Macedonian | ||
| Ilinca | - | Romanian | ||
| Ilinka | - | Macedonian, Serbian, Croatian | ||
| Iliya | - | Bulgarian | ||
| Iliyana | - | Bulgarian | ||
| Ilka | - | Hungarian | ||
| IllÉS | - | Hungarian | ||
| Illarion | - | Russian | ||
| Illiam | - | Manx |