| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Carla | KAHR-lah (Spanish, German, Dutch), KAHR-lə (English) | Italian, Portuguese, Spanish, Catalan, English, German, Dutch | ||
| Carles | - | Catalan | ||
| Carlos | KAHR-los (Spanish) | Spanish, Portuguese, Catalan | ||
| Carme (1) | KAR-me (Galician) | Galician, Catalan | ||
| Caterina | - | Italian, Catalan | ||
| Cesc | SESK | Catalan | ||
| Chimo | CHEE-mo (Spanish) | Catalan, Spanish | ||
| Clara | KLAH-rah (Italian, German, Spanish), KLER-ə (English), KLAR-ə (English) | Italian, German, Spanish, Portuguese, Catalan, Romanian, English, Swedish, Danish, Late Roman | ||
| Climent | klee-MENT | Catalan |