| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Cyril | SIR-əl (English), SEER-əl (English), TSI-ril (Czech) | English, French, Czech, Slovak | ||
| Cyrilla | - | English (Rare) | ||
| Cyrus | SIE-rəs (English) | English, Biblical, Biblical Latin, Ancient Greek (Latinized) | ||
| Dacre | - | English (Rare) | ||
| Daffodil | DAF-ə-dil | English (Rare) | ||
| Dahlia | DAL-yə | English (Modern) | ||
| Daisy | DAY-zee | English | ||
| Dakota | də-KO-tə | English (Modern) | ||
| Dale | DAY-əl, DAYL | English | ||
| Daley | DAY-lee | Irish, English (Rare) | ||
| Dallas | DAL-əs | English | ||
| Dalton | DAWL-tən | English | ||
| Daly | DAY-lee | Irish, English (Rare) | ||
| Damian | DAY-mee-ən (English), DAHM-yahn (Polish) | English, Polish, Dutch | ||
| Damion | DAY-mee-ən | English |