| Gitano | Man | Italian Names |
| Giulia | Woman | Italian Names |
| Giuliana | Woman | Italian Names |
| Giulio | Man | Italian Names |
| Giuseppe | Man | Italian Names |
| Giustina | Woman | Italian Names |
| Gratia | Woman | Italian Names |
| Gratiana | Woman | Italian Names |
| Grazia | Woman | Italian Names |
| Graziella | Woman | Italian Names |
| Greco | Man | Italian Names |
| Gualtier | Man | Italian Names |
| Guido | Man | Italian Names |
| Gustavo | Man | Italian Names |
| Ilaria | Woman | Italian Names |
| Ilario | Man | Italian Names |
| Illeana | Woman | Italian Names |
| Imelda | Woman | Italian Names |
| Isabella | Woman | Italian Names |
| Isidro | Man | Italian Names |