| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Cynwrig | - | Ancient Celtic | ||
| Cyprianus | - | Ancient Roman | ||
| Cyrano | SIR-ə-no (English) | Literature | ||
| Cyriaca | - | Late Roman | ||
| Cyriacus | - | Late Roman | ||
| Cyril | SIR-əl (English), SEER-əl (English), TSI-ril (Czech) | English, French, Czech, Slovak | ||
| Cyrilla | - | English (Rare) | ||
| Cyrillus | - | Ancient Greek (Latinized) | ||
| Cyrus | SIE-rəs (English) | English, Biblical, Biblical Latin, Ancient Greek (Latinized) | ||
| DĂNuȚ | də-NOOTS | Romanian | ||
| DŨNg | - | Vietnamese | ||
| DƯƠNg | - | Vietnamese | ||
| DÁNiel | DAH-nee-el (Hungarian) | Hungarian, Faroese | ||
| DÁNjal | - | Faroese | ||
| DÁVid | - | Hungarian, Slovak |