| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Cyneric | - | Anglo-Saxon | ||
| Cynesige | - | Anglo-Saxon | ||
| Cyneweard | - | Anglo-Saxon | ||
| Cynwrig | - | Ancient Celtic | ||
| Cyprianus | - | Ancient Roman | ||
| Cyriaca | - | Late Roman | ||
| Cyriacus | - | Late Roman | ||
| Cyrillus | - | Ancient Greek (Latinized) | ||
| Cyrus | SIE-rəs (English) | English, Biblical, Biblical Latin, Ancient Greek (Latinized) | ||
| DĂNuȚ | də-NOOTS | Romanian | ||
| DÁNiel | DAH-nee-el (Hungarian) | Hungarian, Faroese | ||
| DÁVid | - | Hungarian, Slovak | ||
| DÉBora | DE-bo-rah (Spanish) | Spanish, Portuguese, French | ||
| DÉLia | - | Portuguese, French, Hungarian | ||
| DÉNes | DAY-nesh | Hungarian |