| Christoffel | | kris-TAWF-fəl | Dutch (Archaic) | |
| Cilla | | SIL-lah (Swedish), SI-lah (Dutch) | Swedish, Dutch | |
| Claudia | | KLAW-dee-ə (English), KLOW-dee-ah (German, Dutch), KLOW-dyah (Italian, Spanish, Romanian) | English, German, Dutch, Italian, Spanish, Romanian, Biblical, Ancient Roman | |
| Clemens | | KLE-mens (German) | German, Dutch, Swedish, Norwegian, Danish, Late Roman | |
| Coba | | - | Dutch | |
| Cobus | | KO-bus | Dutch | |
| Coen | | KOON | Dutch | |
| Coenraad | | KOON-rah:t | Dutch | |
| Cokkie | | - | Dutch | |
| Constantijn | | kawn-stahn-TIEN | Dutch | |
| Coos | | KO:S | Dutch | |
| CornÉ | | kawr-NAY | Dutch | |
| Cornelia | | kawr-NE-lee-ah (German), kor-NE-lyah (Italian), kawr-NAY-lee-ah (Dutch), kər-NEE-lee-ə (English), kər-NEEL-yə (English) | German, Romanian, Italian, Dutch, English, Ancient Roman | |
| Cornelis | | - | Dutch | |
| Cornelius | | kər-NEE-lee-əs (English), kawr-NAY-lee-us (Dutch), kawr-NE-lee-uws (German) | Ancient Roman, English, Dutch, German, Biblical | |