| Chosovi | Bluebird (Hopi) |
| Chosposi | Bluebird eye (Hopi) |
| Choviohoya | Young deer (Hopi) |
| Chowilawu | Joined together by water (Hopi) |
| Chuchip | Deer spirit (Hopi) |
| Chudamani | The best crest Jewel; Crest jewel; Crest jewel Chunmay Supreme consciousness,Name of a saint; Jewel adorned by the gods |
| Chumban | A name meaning a loving kiss. |
| Chunni | A traditional silk scarf. |
| Chunta | Cheating (Hopi) |
| Cindy | Dimunitive of Cynthia, Lucinda, and Cinderella.; Derives From Cynthia; Eart; From the name CYNTHIA |
| Ciqala | Little one (Dakota) |
| Claire | Bright; Clear, Bright; Form of Clara, meaning 'famously bright'; From the name CLARA; Variant of Clara: From the feminine form of the Latin adjective 'clarus' meaning bright or clear. Also distinguished. Famous bearer: Twelfth century St Clare (or Clara) |
| Clamedeus | A name meaning divine or godly caller. |
| Clarine | Mother of Lancelot |
| Clarion | Derived from a clear and shrill trumpet. |
| Clarissant | Sister of Gawain |
| Clement | From 'clemens' meaning mild or merciful. Famous bearer: The British nursery rhyme 'Oranges and Lemons' refers to a church dedicated to St Clement, a disciple of St Paul who became a first century pope; 14 popes have been named Clement.; Gentle. Famous Bea |
| Cnidel | A rare and unique surname. |
| Cocheta | A name meaning little one. |
| Cochise | Renowned warrior chief of the Chiricahua Apache. |
| Cole | Derives From Nicholas; From the dark town: Abbreviation of Nicholas people's victory.; Having dark features; having coal-black hair; From the name NICHOLAS; People's victory.; Prince of red roses; A swarthy woman; having coal-black hair |
| Condwiramurs | Wife of Percival |
| Coowescoowe | Cherokee name meaning egret. |
| Cora | Heart, Maiden; From 'kore' meaning girl or maiden. Famous bearers: Persephone used the title Kore.; Maiden; Seething pool; A young maiden |
| Corbenic | Where the grail was kept |
| Corey | Chosen; God's Servant; Hill hollow.; From the hollow; of the churning waters; Ravine.; From the round hill or hollow.; Seething pool; Variant of Cory meaning variously - From the round hill: seething pool: ravine |
| Cotovatre | A name meaning a dweller of the cot. |
| Creiddyladl | Daughter of Llud |
| Culum | A variation of the name for a dove. |
| Cundrie | Woman who condemns Percival |
| Cundry | Woman who condemns Percival |
| Cus | A name meaning dark or black. |
| Cyril | Borne by large number of Saint; Lordly; Lord, lordly. Famous bearer, the 9th-century missionary Saint Cyril, devised the Cyrillic alphabet used in Slavonic languages.; Master: lord. |
| Dabeet | One who is a master of poetry. |
| Dadgayadoh | Seneca name meaning gambling men. |
| Dadhija | Daughter of milk |
| Dagonet | A name meaning little day. |
| Daguenet | A name meaning small day. |
| Daha | Blazing, very bright |
| Daiana | A name meaning divine light. |