| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Cybill | SIB-əl | English (Rare) | ||
| Cymbeline | SIM-bə-leen (English) | Literature | ||
| Cymone | see-MON | English (Rare) | ||
| Cynbel | - | Ancient Celtic | ||
| Cynebald | - | Anglo-Saxon | ||
| Cyneburg | - | Anglo-Saxon | ||
| Cyneburga | - | Anglo-Saxon (Latinized) | ||
| Cynefri&Eth; | - | Anglo-Saxon | ||
| Cynefrith | - | Anglo-Saxon (Latinized) | ||
| Cyneheard | - | Anglo-Saxon | ||
| Cynem&Aelig;R | - | Anglo-Saxon | ||
| Cyneric | - | Anglo-Saxon | ||
| Cynesige | - | Anglo-Saxon | ||
| Cyneweard | - | Anglo-Saxon | ||
| Cynthia | SIN-thee-ə (English) | English, Greek Mythology (Latinized) |