| Name | Group | Language of Origin | Languages of Use | Meaning/Translation or Related Words | US 2024 |
| Cassidy | Cassidy | Old Irish | English | descendant of Caiside | #476 |
| Cassie | Cassius/Cassia | Latin | English | Words: empty, vain | |
| Cassiopeia | Kassiopeia | Old Greek | English | Words: cassia | |
| Cataleya | Cataleya | Unknown | English | | #235 |
| Catalina | Katherine | Old Greek | Romanian | maybe the pure | |
| Catalina | Katherine | Old Greek | Spanish | maybe the pure | #128 |
| Catarina | Katherine | Old Greek | German, Portuguese, Italian | maybe the pure | |
| Catera | Katherine | Old Greek | Italian | maybe the pure | |
| Caterina | Katherine | Old Greek | Italian | maybe the pure | |
| Catharina | Katherine | Old Greek | German | maybe the pure | |
| Catherina | Katherine | Old Greek | German | maybe the pure | |
| Catherine | Katherine | Old Greek | English | maybe the pure | #320 |
| Cathérine | Katherine | Old Greek | French | maybe the pure | |
| Cathleen | Katherine | Old Greek | English | maybe the pure | |
| Cathrin | Katherine | Old Greek | German | maybe the pure | |
| Cathrina | Katherine | Old Greek | German | maybe the pure | |
| Cathrine | Katherine | Old Greek | German | maybe the pure | |
| Cathy | Katherine | Old Greek | English | maybe the pure | |
| Catia | Katherine | Old Greek | French | maybe the pure | |
| Cato | Katherine | Old Greek | Dutch | maybe the pure | |
| Catrin | Katherine | Old Greek | German | maybe the pure | |
| Catrina | Katherine | Old Greek | German, Italian | maybe the pure | |
| Catriona | Katherine | Old Greek | Scottish, Irish | maybe the pure | |
| Cattleya | Cataleya | Unknown | English | | #905 |
| Cay | Kai | Old High German | German | | |
| Caydence | Cadence | English | English | cadence | |
| Cayetana | Kajetan/Kajetana | Latin | Spanish | from Caieta | |
| Cayla | Kayley | Old Irish | English | descendant of Caollaidhe | |
| Caylee | Kayley | Old Irish | English | descendant of Caollaidhe | |
| Ceara | Ceara | Old Irish | English, Irish | bright red | |
| Cecelia | Cecil/Cecilia | Latin | English | Words: blind | #568 |
| Cécile | Cecil/Cecilia | Latin | French | Words: blind | |
| Cecilia | Cecil/Cecilia | Latin | German, Spanish, Scandinavian, Italian, English | Words: blind | #123 |
| Cecília | Cecil/Cecilia | Latin | Portuguese | Words: blind | |
| Cecilie | Cecil/Cecilia | Latin | German | Words: blind | |
| Cecily | Cecil/Cecilia | Latin | English | Words: blind | |
| Celena | Selenio/Selina | Old Greek | English | moon | |
| Celeste | Celestine/Cölestina | Latin | Spanish, Italian, English | heavenly, of the sky | #198 |
| Céleste | Celestine/Cölestina | Latin | French | heavenly, of the sky | |
| Celestina | Celestine/Cölestina | Latin | Italian | heavenly, of the sky | |
| Célestine | Celestine/Cölestina | Latin | French | heavenly, of the sky | |
| Celia | Celio/Celina | Latin | Spanish, Italian | Words: sky, heaven | #734 |
| Célia | Celio/Celina | Latin | French | Words: sky, heaven | |
| Celin | Celio/Celina | Latin | German | Words: sky, heaven | |
| Celina | Celio/Celina | Latin | German | Words: sky, heaven | #968 |
| Celina | Marcellinus/Marcellina | Latin | German | | |
| Celine | Celio/Celina | Latin | German | Words: sky, heaven | #227 |
| Celine | Marcellinus/Marcellina | Latin | French | | |
| Céline | Celio/Celina | Latin | French | Words: sky, heaven | |
| Cellina | Celio/Celina | Latin | Italian | Words: sky, heaven | |
| Célya | Celio/Celina | Latin | French | Words: sky, heaven | |
| Cemile | Jamil/Jamila | Arabic | Turkish | the beautiful, the handsome | |
| Cempaka | Cempaka | Sanskrit | Malay | Frangipani | |
| Cemre | Cemre | Unknown | Turkish | | |
| Cera | Ceara | Old Irish | English, Irish | bright red | |
| Ceren | Ceren | Unknown | Turkish | maybe gazelle | |
| Cerys | Cerys | Welsh | English, Welsh | love | |
| Cesarina | Cäsar/Cesira | Latin | Italian | Words: cut, excise | |
| Cesira | Cäsar/Cesira | Latin | Italian | Words: cut, excise | |
| Ceyda | Ceyda | Unknown | Turkish | | |
| Ceylan | Ceylan | Turkish | Turkish | gazelle | |
| Ceylin | Ceylin | Unknown | Turkish | | |
| Chahaya | Cahaya | Sanskrit | Malay | light, radiance | |
| Chaïma | Shayma | Arabic | French, Arabic | | |
| Chaja | Chayim/Chaya | Hebrew | German | life | |
| Chan | Chan | Mandarin | Kanji symbol, Mandarin | beautiful, graceful | |
| Chana | Anna | Hebrew | English | He (God) was gracious | #673 |
| Chandler | Chandler/Chandler | Old French | English | candle maker, candle seller | #895 |
| Chandra | Chandra | Sanskrit | English, Indian | the moon | |
| Chandrika | Chandra | Sanskrit | Indian | the moon | |
| Chanel | Chanel | Old French | English | canal, channel | |
| Chantal | Chantal | French | French | | |
| Chantale | Chantal | French | French | | |
| Chante | Chantal | French | English | | |
| Chantel | Chantal | French | English | | |
| Chantelle | Chantal | French | English | | |
| Charis | Charis | Greek | German, English | grace, kindness | |
| Charissa | Charis | Greek | English | grace, kindness | |
| Charitas | Caritas | Latin | German | Words: charity | |
| Charito | Charito | Old Greek | Spanish, Tagalog | Words: full of grace / grace, kindness | |
| Charity | Charity | English | English | charity | |
| Charla | Karl/Charlotte/Carla | Old High German | English | Words: man, husband | |
| Charlee | Karl/Charlotte/Carla | Old High German | English | Words: man, husband | #398 |
| Charleen | Karl/Charlotte/Carla | Old High German | English | Words: man, husband | |
| Charleigh | Karl/Charlotte/Carla | Old High German | English | Words: man, husband | #763 |
| Charlene | Karl/Charlotte/Carla | Old High German | French, English | Words: man, husband | |
| Charlène | Karl/Charlotte/Carla | Old High German | French | Words: man, husband | |
| Charley | Karl/Charlotte/Carla | Old High German | English | Words: man, husband | #729 |
| Charli | Karl/Charlotte/Carla | Old High German | English | Words: man, husband | #524 |
| Charlie | Karl/Charlotte/Carla | Old High German | English | Words: man, husband | #140 |
| Charline | Karl/Charlotte/Carla | Old High German | French | Words: man, husband | |
| Charlize | Charlize | Unknown | English | | |
| Charlott | Karl/Charlotte/Carla | Old High German | German, French, English | Words: man, husband | |
| Charlotta | Karl/Charlotte/Carla | Old High German | Scandinavian | Words: man, husband | |
| Charlotte | Karl/Charlotte/Carla | Old High German | German, French, English | Words: man, husband | #4 |
| Charmaine | Charmaine | English | English | | |
| Chase | Chase/Chase | Old French | English | hunter | |
| Chasity | Chastity | English | English | chastity | |
| Chastity | Chastity | English | English | chastity | |
| Chaya | Chayim/Chaya | Hebrew | English, Hebrew | life | #599 |