| Name | Meaning | Gender | Origin |
|---|
| Cosmo | Order | Male | Greek |
| Cricket | A leaping insect | Unisex | English |
| Darcy | From Arcy | Female | English |
| Darth | | Unisex | Hebrew |
| Davin | Beloved | Male | Hebrew |
| Delano | From The Elder Tree Grove. | Male | French |
| Demon | Demon | Unisex | Greek |
| Dewayne | Dark, black | Male | Gaelic |
| Diesel | | Unisex | Hebrew |
| Dolan | Descendant of Dubhshlán | Male | Gaelic |
| Domino | Small, rectangular black and white blocks used in the game of dominos. | Unisex | English |
| Dorjan | Dark Man | Male | Hungarian |
| Doug | Black water | Male | Gaelic |
| Dougal | Black stranger | Male | Gaelic |
| Douglas | Black water | Male | Gaelic |
| Douglass | From The Dark River. The Scottish Douglas Clan Had Two Historical Branches: (Black Douglases And Red Douglases.) The Lords Of These Clans Figure In Sir Walter Scott's Novels. | Male | English |
| Doyle | Dark stranger | Male | Gaelic |
| Duane | Dark, black | Male | Gaelic |
| Dudley | Wood or clearing of Dudda | Male | English |
| Duff | Dark, black | Male | Gaelic |
| Duffy | Son of Dubhthach or DubhshÃth | Unisex | Gaelic |
| Dugan | Dark man | Male | Gaelic |
| Duncan | Brown chief | Male | Gaelic |
| Dunstan | Dark stone | Male | English |
| Dwayne | Dark, black | Male | Gaelic |
| Eclipse | | Unisex | Hebrew |
| Eightball | Black ball used in pool/billiards. | Unisex | English |
| Emery | Bravery and power | Male | German |
| Flint | A flint-worker | Male | English |
| Forest | Forest | Male | English |