| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| CHUS | CHOOS | Spanish | ||
| CITLALI | - | Native American, Nahuatl | ||
| Claude | [klɔ:d] | |||
| CLAUDE | KLOD (French), KLAWD (English) | French, English | ||
| Clements | ['klemənts] | |||
| Clemons | ['klemənz] | |||
| Coates | [kəuts] | |||
| Coats | [kəuts] | |||
| Cobb | [kɔb] | |||
| COBY | KO-bee | English | ||
| Cochran | ['kɔkən] | |||
| Cody | ['kəudi] | |||
| Coffey | ['kɔfi] | |||
| Cohen | ['kəuin] | |||
| Coker | ['kəukə] |