| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 541 | Clarine | Latin | Clarity. | F | |
| 542 | Clarissa | Latin | The Latinized form of the English Clarice, meaning famous. Famous bearer: Samuel Richardson's 18th century novel 'Clarissa Harlowe'. | F | |
| 543 | Clarisse | Latin | Famous. | F | |
| 544 | Clarita | Latin | Clarity. | F | |
| 545 | Claudia | Latin | Lame. | F | |
| 546 | Clemence | Latin | Variant of Clementia: Mildness, clemency, mercy. Famous bearer: Clemence was the mythological Roman goddess of pity. | F | |
| 547 | Clemency | Latin | Variant of Clementia: Mildness, clemency, mercy. Famous bearer: Clemence was the mythological Roman goddess of pity. | F | |
| 548 | Clementia | Latin | Mildness. The name Clementia was borne by the Roman goddess of mercy. Clementia and its variants have been used occasionally in Britain since the Middle Ages, hut are uncommon in modern times. | F | |
| 549 | Clementina | Latin | Feminine form of Clement: From 'clemens' meaning mild or merciful. | F | |
| 550 | Clementine | Latin | Feminine form of Clement: From 'clemens' meaning mild or merciful. | F | |
| 551 | Cleta | Latin | Illustrious. | F | |
| 552 | Clonia | Latin | Amazon. | F | |
| 553 | Clorinda | Latin | Renowned. | F | |
| 554 | Clotho | Latin | One of the Moirae. | F | |
| 555 | Clymene | Latin | Amazon. | F | |
| 556 | Columba | Latin | Dove. | F | |
| 557 | Columbina | Latin | Feminine form of Columba: Dove. Famous bearer: 6th century Irish abbot and missionary St Columba converted the inhabitants of Scotland and northern England to Christianity. | F | |
| 558 | Columbine | Latin | Feminine form of Columba: Dove. Famous bearer: 6th century Irish abbot and missionary St Columba converted the inhabitants of Scotland and northern England to Christianity. | F | |
| 559 | Concepta | Latin | Conceived, a reference to the Immaculate Conception. | F | |
| 560 | Conception | Latin | Understanding. | F | |