| Devan | Unisex | Irish Names |
| Devin | Unisex | Irish Names |
| Devlin | Man | Irish Names |
| Dierdra | Woman | Irish Names |
| Doherty | Man | Irish Names |
| Dolan | Man | Irish Names |
| Donagh | Man | Irish Names |
| Donahue | Man | Irish Names |
| Donnacha | Man | Irish Names |
| Donnan | Man | Irish Names |
| Donnel | Man | Irish Names |
| Donnelly | Man | Irish Names |
| Donnigan | Man | Irish Names |
| Donovan | Man | Irish Names |
| Dooley | Man | Irish Names |
| Doreen | Woman | Irish Names |
| Doyle | Man | Irish Names |
| Duane | Man | Irish Names |
| Dublin | Unisex | Irish Names |
| Duff | Unisex | Irish Names |