| Duffy | Unisex | Irish Names |
| Dugan | Man | Irish Names |
| Dympna | Woman | Irish Names |
| Ea | Unisex | Irish Names |
| Éabha | Woman | Irish Names |
| Eachna | Woman | Irish Names |
| Eadoin | Woman | Irish Names |
| Èala | Woman | Irish Names |
| Eamon | Man | Irish Names |
| Éanna | Man | Irish Names |
| Eavan | Woman | Irish Names |
| Edan | Man | Irish Names |
| Egan | Man | Irish Names |
| Eileen | Woman | Irish Names |
| Eilley | Woman | Irish Names |
| Eimear | Woman | Irish Names |
| Eire | Unisex | Irish Names |
| Eithne | Woman | Irish Names |
| Elish | Woman | Irish Names |
| Emer | Woman | Irish Names |