| Chiara | Dark. Feminine Of Ciaran. | Female |
| Chrysostom | Golden-Mouthed | Male |
| Cyril | Master: Lord. | Male |
| Cyrus | Sun | Male |
| Daniela | God Is My Judge | Female |
| Deidre | Melancholy. A Variant Of The Older Name Deirdre In Celtic Legend Deirdre Died Of A Broken Heart. | Female |
| Deirdre | Sorrowful | Female |
| Dermot | Free | Male |
| Diana | Divine | Female |
| Diantha | Modern Blend Of Diana: (Divine Huntress) And Anthea: (Flower) | Female |
| Dominic | Belonging To The Lord. | Male |
| Edward | Guardian | Male |
| Egidius | Youthful | Male |
| Eirlys | Snow Drop | Female |
| Elizabeth | Sister Of Mark | Female |
| Elmer | Lives At The Elm Tree Moor Famed: Noble. | Male |
| Elmo | Worthy To Be Loved | Male |
| Eloise | Variant Of Louise Famous In War | Female |
| Elvira | Truth. White Or Beautiful | Female |
| Emilia | Flattering | Female |
| Enoch | Consecrated | Male |
| Erhard | Honor | Male |
| Ernest | Serious | Male |
| Esmeralda | The Prized Green Emerald Gemstone. | Female |
| Esperanza | Hope | Female |