| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Costin | - | Romanian | ||
| Cowessess | - | Native American, Ojibwe | ||
| Crescencia | - | Spanish | ||
| Crescens | - | Late Roman, Biblical Latin | ||
| Crescentia | - | German, Late Roman | ||
| Crescentius | - | Late Roman | ||
| Crescenzo | - | Italian | ||
| Crina | KREE-nah | Romanian | ||
| Crispinus | - | Ancient Roman | ||
| Crispus | - | Ancient Roman | ||
| CristÓBal | kree-STO-bahl | Spanish | ||
| Cristi | - | Romanian | ||
| CristiÁN | kree-STYAHN | Spanish | ||
| Cristian | - | Romanian | ||
| Cristiana | kree-STYAH-nah (Italian) | Italian, Portuguese |