| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 181 | Dearg | Celtic | Son of Daghda. | M | |
| 182 | Dermot | Celtic | Free. | M | |
| 183 | Desmond | Celtic | From south Munster. | M | |
| 184 | Devin | Celtic | Poet. | M | |
| 185 | Devyn | Celtic | Poet. | M | |
| 186 | Dewain | Celtic | Song. | M | |
| 187 | Dillion | Celtic | Faithful. | M | |
| 188 | Dinsmore | Celtic | From the hill fort. | M | |
| 189 | Domhnall | Celtic | Stranger. | M | |
| 190 | Don | Celtic | Dark stranger. | M | |
| 191 | Donaghy | Celtic | Strong fighter. | M | |
| 192 | Donal | Celtic | Stranger. | M | |
| 193 | Donald | Celtic | Dark stranger. | M | |
| 194 | Donall | Celtic | Stranger. | M | |
| 195 | Donat | Celtic | Stranger. | M | |
| 196 | Donnally | Celtic | Brave. | M | |
| 197 | Donnchadh | Celtic | Strong fighter. | M | |
| 198 | Donnelly | Celtic | Brave. | M | |
| 199 | Donogb | Celtic | Strong fighter. | M | |
| 200 | Donovan | Celtic | Strong fighter. | M | |