| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 261 | Dervorgilla | Irish | Servant of Dervor. | F | |
| 262 | Devaney | Irish | Dark-haired. | F | |
| 263 | Devanie | Irish | Dark-haired. | F | |
| 264 | Devany | Irish | Dark-haired. | F | |
| 265 | Devenny | Irish | Dark-haired. | F | |
| 266 | Devent | Irish | Bard. | F | |
| 267 | Devinee | Irish | Dark-haired. | F | |
| 268 | Devnet | Irish | Bard. | F | |
| 269 | Devony | Irish | Dark-haired. | F | |
| 270 | Diedre | Irish | Melancholy. A variant of the older name Deirdre. In Celtic legend Deirdre died of a broken heart. | F | |
| 271 | Dierdre | Irish | Sorrowful. | F | |
| 272 | Doireann | Irish | Sullen. | F | |
| 273 | Dominica | Irish | Name of a saint. | F | |
| 274 | Donelle | Irish | Feminine form of Donal: rules the world. | F | |
| 275 | Doon | Irish | From Doon. | F | |
| 276 | Doreen | Irish | A variant of Doirean, derived from a Celtic word meaning sullen. | F | |
| 277 | Downeti | Irish | Bard. | F | |
| 278 | Downett | Irish | Bard. | F | |
| 279 | Duana | Irish | Feminine of Duane. Dark. | F | |
| 280 | Duayna | Irish | Feminine of Duane. | F | |