| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 501 | Clovis | French | Name of a king. | M | |
| 502 | Coco | French | A pet name. | F | |
| 503 | Colan | French | Abbreviation of Nicholas 'people's victory.'. | M | |
| 504 | Colbert | French | Dark; dark-haired. | M | |
| 505 | Colbey | French | Dark; dark-haired. | M | |
| 506 | Coletta | French | Victorious. Variant of Nicolette. | F | |
| 507 | Colette | French | Necklace. Victorious. A Middle Ages feminine form of Nicholas which was originally a diminutive of Nicolette. Famous bearers - 15th Century French nun St Colette, and 20th century French writer Colette. | F | |
| 508 | Colin | French | A variant of Nicholas, which means 'people's victory', from a French diminutive. | M | |
| 509 | Colletta | French | Victorious. Variant of Nicolette. | F | |
| 510 | Collette | French | Necklace. Victorious. Variant of Nicolette. | F | |
| 511 | Collin | French | Abbreviation of Nicholas 'people's victory.'. | M | |
| 512 | Collins | French | Abbreviation of Nicholas 'people's victory.'. | M | |
| 513 | Colvile | French | Variant of Colville: Place name in France. | M | |
| 514 | Colvill | French | Variant of Colville: Place name in France. | M | |
| 515 | Colville | French | Place name in France. | M | |
| 516 | Colyn | French | Abbreviation of Nicholas 'people's victory.'. | M | |
| 517 | Comfort | French | Strength. | F | |
| 518 | Comforte | French | Strength. | F | |
| 519 | Constance | French | Constancy; steadfastness. . | F | |
| 520 | Constancia | French | Constancy; steadfastness. . | F | |