| Decima | Woman | Latin Names |
| Decker | Man | English Names |
| Declan | Man | Irish Names |
| Dee | Woman | American Names |
| Deena | Woman | English Names |
| Deepak | Man | Indian Names |
| Deepika | Unisex | Indian Names |
| Deepnita | Woman | Indian Names |
| Defne | Woman | Turkish Names |
| Dehateh | Unisex | Native American - Seneca Names |
| Deianira | Woman | Greek Names |
| Deidra | Woman | Irish Names |
| Deimantas | Man | Lithuanian Names |
| Deimena | Woman | Lithuanian Names |
| Deion | Man | American Names |
| Deiondre | Unisex | American Names |
| Deirbhile | Woman | Irish Names |
| Deirdra | Woman | Irish Names |
| Deirdre | Woman | Irish Names |
| Deiter | Man | German Names |