| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Cvetka | - | Slovene | ||
| Cvetko | - | Slovene | ||
| Cvijeta | TSVEE-e-tah | Croatian, Serbian | ||
| Cy | SIE | English | ||
| Cyan | SIE-an | English (Rare) | ||
| Cybele | SIB-ə-lee (English) | Near Eastern Mythology (Hellenized) | ||
| Cybill | SIB-əl | English (Rare) | ||
| Cydney | SID-nee | English (Modern) | ||
| Cymone | see-MON | English (Rare) | ||
| Cyndi | SIN-dee | English | ||
| Cynebald | - | Anglo-Saxon | ||
| Cyneburg | - | Anglo-Saxon | ||
| Cyneburga | - | Anglo-Saxon (Latinized) | ||
| Cynefri&Eth; | - | Anglo-Saxon | ||
| Cynefrith | - | Anglo-Saxon (Latinized) |