| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 361 | Doireann | Gaelic | Sullen. | F | |
| 362 | Domhnall | Gaelic | Derived from two Celtic words meaning 'world mighty'. | F | |
| 363 | Domhnull | Gaelic | Dark stranger. | M | |
| 364 | Domhnulla | Gaelic | Rules all. | F | |
| 365 | Donahue | Gaelic | Dark warrior. | M | |
| 366 | Donald | Gaelic | Dark stranger. | M | |
| 367 | Donalda | Gaelic | Rules all. | F | |
| 368 | Donia | Gaelic | Rules all. | F | |
| 369 | Donnchadh | Gaelic | Dark warrior. | M | |
| 370 | Donny | Gaelic | Form of Donn. In mythology the Irish Donn was known as king of the underworld. | M | |
| 371 | Dooley | Gaelic | Dark hero. | M | |
| 372 | Doreen | Gaelic | Ann. | F | |
| 373 | Dorene | Gaelic | Ann. | F | |
| 374 | Doyle | Gaelic | Dark stranger. | M | |
| 375 | Dubhgall | Gaelic | Dark stranger. | M | |
| 376 | Dubhgan | Gaelic | Dark skinned. | M | |
| 377 | Dubhglas | Gaelic | Dark water. | M | |
| 378 | Dubhloach | Gaelic | Dark hero. | M | |
| 379 | Dubhthach | Gaelic | Dark skinned. | M | |
| 380 | Duff | Gaelic | Dark skinned. | M | |