| Name | Meaning | Gender | Origin |
|---|
| Dacey | Of the Decies | Female | Gaelic |
| Daire | Fertile | Male | Gaelic |
| Daley | Descendant of Dálach | Male | Gaelic |
| Dallas | Meadow stance | Male | Gaelic |
| Damon | To tame | Male | Greek |
| Darby | Deer settlement | Female | Norse |
| Darcy | From Arcy | Female | English |
| Decla | Full of goodness | Female | Gaelic |
| Declan | Full of goodness | Male | Gaelic |
| Dedra | Uncertain, perhaps sorrow, grief | Unisex | Gaelic |
| Deidra | Uncertain, perhaps sorrow, grief | Female | Gaelic |
| Deidre | Uncertain, perhaps sorrow, grief | Female | Gaelic |
| Deirdra | Uncertain, perhaps sorrow, grief | Female | Gaelic |
| Deirdre | Uncertain, perhaps sorrow, grief | Female | Gaelic |
| Delaney | From the alder grove | Female | English |
| Dempsey | Proud, haughty | Male | Gaelic |
| Dermot | Without enemies | Male | Gaelic |
| Derry | Oak Grove. Surname. | Male | English |
| Des | Abbreviation Of Names Beginning With Des. | Unisex | English |
| Desmond | Man from south Munster | Male | Gaelic |
| Devin | Descendant of Damhán | Female | Gaelic |
| Devlin | Descendant of Doibhilin | Male | Gaelic |
| Devnet | Bard | Female | English |
| Devyn | Descendant of Damhán | Female | Gaelic |
| Dewayne | Dark, black | Male | Gaelic |
| Dierdre | Sorrowful | Female | English |
| Dillon | Like A Lion. | Male | Welsh |
| Dolan | Descendant of Dubhshlán | Male | Gaelic |
| Dominica | Lord | Female | Latin |
| Don | World rule | Male | Gaelic |