| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 441 | Derby | Irish | Diminutive of Diarmait: Free from envy. | M | |
| 442 | Dermod | Irish | Variant of Dermot: Free from jealosy. | M | |
| 443 | Dermot | Irish | Free from envy. From Diarmait or Diarmuid. Famous bearer: 12th century Irish king Dermot MacMurrough. | M | |
| 444 | Dermott | Irish | Variant of Dermot: Free from jealosy. | M | |
| 445 | Derrie | Irish | Variant of Derry: Red-haired. | M | |
| 446 | Derry | Irish | Oak grove. A diminutive of Derek which is sometimes used as an independent name associated with the Irish place name 'Derry'. | M | |
| 447 | Desmond | Irish | From South Munster. Famous Bearer: Archbishop Desmond Tutu (of South Africa). | M | |
| 448 | Desmund | Irish | Variant of Desmond: From South Munster. Famous Bearer: Archbishop Desmond Tutu (of South Africa). | M | |
| 449 | Dev | Irish | Diminutive of Devin: Poet. | M | |
| 450 | Devan | Irish | Variant of Devin: Poet. | M | |
| 451 | Deven | Irish | Variant of Devin: Poet. | M | |
| 452 | Devin | Irish | Poet. | M | |
| 453 | Devine | Irish | Oxen; bard. | M | |
| 454 | Devland | Irish | Misfortune. | M | |
| 455 | Devlen | Irish | Variant of Devlin: Brave. | M | |
| 456 | Devlin | Irish | Brave. | M | |
| 457 | Devlon | Irish | Misfortune. | M | |
| 458 | Devlyn | Irish | Variant of Devlin: Brave; misfortune. | M | |
| 459 | Devon | Irish | Variant of Devin: Poet. | M | |
| 460 | Devonn | Irish | Variant of Devin: Poet. | M | |