| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 281 | Chrisanne | Spanish | Variant of Chrysantus. | F | |
| 282 | Chrysann | Spanish | Variant of Chrysantus. | F | |
| 283 | Chumin | Spanish | Lord. | M | |
| 284 | Chuminga | Spanish | Variant of Chumin: Lord. | M | |
| 285 | Chumo | Spanish | Twin. | M | |
| 286 | Ciceron | Spanish | Chickpea. | M | |
| 287 | Cid | Spanish | God; rooster. | M | |
| 288 | Cidro | Spanish | Abbreviation of Isadoro 'strong gift.'. | M | |
| 289 | Cipriana | Spanish | From Cyprus. | F | |
| 290 | Cipriano | Spanish | From Cyprus. | M | |
| 291 | Cira | Spanish | Variant of Cyril. | F | |
| 292 | Ciri | Spanish | Variant of Cyril. | F | |
| 293 | Cirilo | Spanish | Noble. | M | |
| 294 | Ciro | Spanish | Throne; sun. | M | |
| 295 | Cisco | Spanish | Frenchman. | M | |
| 296 | Clareta | Spanish | Brilliant. | F | |
| 297 | Clarinda | Spanish | Beautiful. | F | |
| 298 | Clarisa | Spanish | Bright; shining and gentle; famous. | F | |
| 299 | Clarissa | Spanish | Clear. | F | |
| 300 | Claudia | Spanish | Lame. | F | |