Starting with letter C
| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 401 | Casnar | Welsh | Legendary nobleman. | M | |
| 402 | Caspar | English | Wealthy man. | M | |
| 403 | Caspar | Persian | Keeper of the treasure. Caspar was one of Three Magi who traveled from afar to find the baby Jesus. | M | |
| 404 | Casper | English | Variant of Caspar: Wealthy man. | M | |
| 405 | Casper | Persian | Treasure. | M | |
| 406 | Cass | English | Diminutive of Caspar: Wealthy man. | M | |
| 407 | Cass | Irish | Curly-headed. | M | |
| 408 | Cass | Latin | Vain. | M | |
| 409 | Cass | Welsh | Curly-headed. | M | |
| 410 | Cassady | Irish | Variant of Cassidy: Intelligent; from Caiside; curly-headed. | M | |
| 411 | Cassian | Irish | Curly-headed. | M | |
| 412 | Cassian | Welsh | Curly-headed. | M | |
| 413 | Cassidy | Gaelic | Clever. | M | |
| 414 | Cassidy | Irish | Intelligent; from Caiside; curly-headed. | M | |
| 415 | Cassidy | Welsh | Curly-headed. | M | |
| 416 | Cassiel | Greek | The guardian of Capricornians. | M | |
| 417 | Cassio | Shakespearean | 'The Tragedy of Othello, Moor of Venice' Lieutenant to Othello. | M | |
| 418 | Cassius | Latin | Narcissistic; vain. | M | |
| 419 | Cassius | Shakespearean | 'The Tragedy of Julius Caesar' Instigator of the conspiracy against Caesar. | M | |
| 420 | Cassivellaunus | Celtic | From Arthurian legend. | M | |