| 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 | |
| DÍDac | | - | Catalan | |
| Diana | | die-AN-ə (English), dee-AH-nah (Italian, German, Dutch) | English, Spanish, Italian, Portuguese, Romanian, Catalan, German, Dutch, Danish, Swedish, Norwegian, | |
| Dolors | | - | Catalan | |
| Donat | | DAW-naht (Polish) | French, Occitan, Catalan, Polish | |
| Eduard | | E-doo-ahrt (German) | German, Russian, Czech, Slovak, Croatian, Catalan, Dutch, Estonian, Romanian, Georgian, Armenian | |
| Eloi | | - | French, Catalan | |
| Enric | | ən-REEK | Catalan | |
| Esteve | | - | Catalan | |
| EulÀLia | | - | Catalan | |