| Devin | Irish | Anglicized form of the old Gaelic n.. |  |  |
| Devlin | Irish | Transferred use of the Anglicized s.. |  | |
| Devnet | Irish | Anglicized form of Damhnait (a poet.. | | |
| Diarmaid | Irish | Derived from Diarmait (without inju.. | | |
| Dillon | Irish | A name that means "loyal." This is .. | | |
| Doiminic | Irish | Irish form of Dominic (belonging to.. |  | |
| Doireann | Irish | Old Gaelic name meaning "sullen." D.. | | |
| Dominic | Irish | Derived from the Latin Dominicus (b.. | | |
| Dominica | Irish | Feminine form of Dominic (of the .. | | |
| Donagh | Irish | Anglicized form of Donnchadh (brown.. | | |
| Donahue | Irish | Anglicized form of Donnchadh (brown.. | | |
| Donal | Irish | Irish variant of Domhnall (world mi.. | | |
| Donal | Irish | Irish variant of Domhnall (world mi.. | | |
| Donald | Irish | A borrowing from the Scottish, Dona.. | | |
| Donelle | Irish | Feminine form of Donal (world ruler.. | | |
| Donn | Irish | Derived from the Gaelic donn (brown.. |  | |
| Donnan | Irish | Diminutive form of the Gaelic donn .. | | |
| Donnchadh | Irish | Very old name derived from the Old .. | | |
| Donnell | Irish | A name that means "brave" or "dark... | | |
| Donnelly | Irish | Transferred use of the surname, whi.. | | |
| Donovan | Irish | Transferred use of the surname, whi.. | | |
| Dooley | Irish | A name that means "dark hero." A we.. | | |
| Doreen | Irish | Variant form of Dora (gift), made b.. | | |
| Dorinnia | Irish | Latinate form of the Gaelic Doirean.. | | |
| Dorren | Irish | Irish form of the Gaelic Doireann (.. | | |
| Douglas | Irish | Transferred use of the surname, whi.. | | |
| Dowan | Irish | Anglicized form of Dubhan, a diminu.. | | |
| Downett | Irish | Anglicized form of the Gaelic Damhn.. | | |
| Duana | Irish | Meaning "song."
| | |
| Duane | Irish | Meaning "dark." Also Deune, Duain, .. | | |
| Dubh | Irish | Derived from the Gaelic dubh (black.. | | |
| Dubhan | Irish | Derived from a diminutive form of d.. | | |
| Dubhglas | Irish | Compound name composed of the Gaeli.. | | |
| Duff | Irish | Anglicized form of Dubh (black-hair.. | | |
| Dugan | Irish | Meaning "swarthy." | | |
