| Iantha | Woman | Greek Names |
| Ianthe | Woman | Greek Names |
| Icarus | Unisex | Greek Names |
| Idola | Woman | Greek Names |
| Ikia | Woman | Greek Names |
| Iliana | Woman | Greek Names |
| Ilithya | Woman | Greek Names |
| Ilithyia | Woman | Greek Names |
| Illias | Man | Greek Names |
| Indigo | Unisex | Greek Names |
| Io | Woman | Greek Names |
| Ioannis | Man | Greek Names |
| Iola | Woman | Greek Names |
| Iolanthe | Woman | Greek Names |
| Ione | Woman | Greek Names |
| Iphigenia | Woman | Greek Names |
| Iraia | Unisex | Greek Names |
| Irene | Woman | Greek Names |
| Irida | Woman | Greek Names |
| Iris | Woman | Greek Names |