| Ingram | Unisex | German Names |
| Ingrid | Woman | Scandinavian Names |
| Iniabi | Unisex | Native American - Osage Names |
| Inigo | Man | Portuguese Names |
| Iniko | Man | African - Nigeria Names |
| Inna | Woman | Russian Names |
| Innis | Unisex | Irish Names |
| Innokentiy | Man | Russian Names |
| Inocencia | Woman | Spanish Names |
| Inoke | Man | Hawaiian Names |
| Inori | Woman | Japanese Names |
| Insula | Unisex | Native American - Salish Names |
| Intan | Woman | Indonesian Names |
| Integra | Woman | Latin Names |
| Inti | Unisex | Incan Names |
| Io | Woman | Greek Names |
| Ioan | Man | Welsh Names |
| Ioana | Woman | Romansh Names |
| Ioane | Woman | Hawaiian Names |
| Ioannis | Man | Greek Names |