| N A M E | O R I G I N | M E A N I N G |
| Dearan | Gaelic | Great. |
| Dearborn | English | From the deer brook. |
| Dearbourn | English | Variant of Dearborn: Deer river. |
| Dearbourne | English | From the deer brook. |
| Dearg | Celtic | Son of Daghda. |
| Deasach | Gaelic | Southerner. |
| Deasmumhan | Gaelic | Man from south Munster. |
| Deavon | English | Variant of the English county name Devon. |
| Decha | Thai | Powerful. |
| Decimus | Latin | Tenth. This name was often given to the tenth child in large families. |
| Decker | Belgian | roofer |
| Declan | Gaelic | goodness |
| Deco | Hungarian | Lord. |
| Dedan | Biblical | Their breasts, friendship, a judge. |
| Dedo | Latin | The Lord's. |
| Dedric | German | Gifted ruler. Variant of Diederick. |
| Dedrick | Dutch | Gifted ruler. Variant of Diederick. |
| Dedrik | German | People's ruler. |
| Deegan | Gaelic | Black-haired. |
| Deems | English | Judge's son. |
| Deen | Hebrew | God will judge. |
| Deepak | Hindi | Variant of Dipak: Lamp. |
| Deerborn | English | Variant of Dearborn: Deer river. |
| Deerward | English | Guardian of the deer. |
| Deganawidah | Native-American | Variant of Dekanawida: Iroquois name meaning two rivers running. |
| Degataga | Native-American | Cherokee name meaning gathering. |
| Dehaan | Dutch | Cock or rooster. |
| Deion | African-American | Variant of Dion: God. |
| Deiphobus | Greek | A son of Priam. |
| Deiter | German | Army of the People |
