| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 801 | Dubg | Irish | Black haired. | M | |
| 802 | Dubh | Irish | Black-haired. | M | |
| 803 | Dubhagain | Irish | Black. | M | |
| 804 | Dubhain | Irish | Dark. | F | |
| 805 | Dubhan | Irish | Black. | M | |
| 806 | Dubheasa | Irish | Dark beauty. | F | |
| 807 | Dubhglas | Irish | Black and gray. | M | |
| 808 | DubhgMl | Irish | Dark stranger. | M | |
| 809 | Duffy | Irish | Surname. | M | |
| 810 | Dugald | Irish | Variant of Dougal: From the Gaelic dubhgall, meaning dark stranger. Daugal was the nickname the Irish gave to the Vikings. | M | |
| 811 | Dugan | Irish | Swarthy. | M | |
| 812 | Duggan | Irish | Variant of Dugan: Swarthy. | M | |
| 813 | Dughlas | Irish | Variant of Dubhglas: Black and gray. | M | |
| 814 | Duke | Irish | Diminutive of Marmaduke: Servant of Madoc (fortunate). | M | |
| 815 | Duvessa | Irish | Dark beauty. | F | |
| 816 | Duwayne | Irish | Dark. Many Irish and Scottish names have the meaning 'dark' or 'black.'. | M | |
| 817 | Dwain | Irish | Dark. Many Irish and Scottish names have the meaning 'dark' or 'black.'. | M | |
| 818 | Dwaine | Irish | Dark. Many Irish and Scottish names have the meaning 'dark' or 'black.'. | M | |
| 819 | Dwane | Irish | Dark. Many Irish and Scottish names have the meaning 'dark' or 'black.'. | M | |
| 820 | Dwayne | Irish | From an Irish surname meaning black or dark. Many Irish and Scottish names have the meaning 'dark' or 'black.'. | M | |