| Ilham | Unisex | Arabic Names |
| Ilia | Woman | Native American Names |
| Iliana | Woman | Greek Names |
| Ilir | Man | Albanian Names |
| Ilissa | Woman | American Names |
| Ilithya | Woman | Greek Names |
| Ilithyia | Woman | Greek Names |
| Iliya | Unisex | Bulgarian Names |
| Ilka | Woman | Hungarian Names |
| Ilkay | Unisex | Turkish Names |
| Ilknur | Man | Turkish Names |
| Illeana | Woman | Italian Names |
| Illias | Man | Greek Names |
| Illinois | Unisex | Native American - Algonquin Names |
| Illtyd | Man | Welsh Names |
| Illuminata | Woman | Latin Names |
| Ilma | Woman | Scandinavian Names |
| Ilmari | Man | Scandinavian Names |
| Ilmarinen | Man | Scandinavian Names |
| Ilo | Man | African - Nigeria Names |