| Carolien | | kah-ro-LEEN | Dutch | |
| Caroline | | ka-ro-LEEN (French), KER-ə-lien (English), KER-ə-lin (English), KAR-ə-lien (English), KAR-ə-lin (English) | French, English, German, Swedish, Norwegian, Danish, Dutch | |
| Cas | | - | Dutch | |
| Casper | | KAHS-pər (Dutch) | Dutch, Swedish, Norwegian, Danish | |
| Catharina | | kah-tah-REE-nah (Dutch) | Dutch, Swedish | |
| Cato (2) | | - | Dutch | |
| Cecilia | | sə-SEE-lee-ə (English), sə-SEEL-yə (English), che-CHEE-lyah (Italian), the-THEE-lyah (Spanish), se-SEE-lyah (Latin American Spanish), se-SEEL-yah (Danish, Norwegian), SE-see-lee-ah (Finnish) | English, Italian, Spanish, Swedish, Danish, Norwegian, Finnish, Dutch, German | |
| Ceel | | KAY:L | Dutch | |
| Cees | | - | Dutch | |
| Chantal | | shawn-TAHL (French), shawn-TAL (English), shan-TAL (English), shahn-TAHL (Dutch) | French, English, Dutch | |
| Charlotte | | shar-LOT (French), SHAHR-lət (English), shahr-LAW-tə (German), shah-LOT (Swedish), shahr-LAWT-tə (Dutch) | French, English, German, Swedish, Norwegian, Danish, Dutch | |
| Chris | | KRIS (English), KRHIS (Dutch) | English, Dutch | |
| Christiaan | | KRIS-tee-ah:n | Dutch | |
| Christina | | kris-TEEN-ə (English), kris-TEE-nah (German, Swedish, Dutch) | English, German, Swedish, Norwegian, Danish, Dutch | |
| Christine | | krees-TEEN (French), kris-TEEN (English), kris-TEE-nə (German, Dutch) | French, English, German, Swedish, Norwegian, Danish, Dutch | |