| Name | Meaning | Gender | Origin |
|---|
| Cassie | Abbreviation of Cassandra. Unheeded prophetess. In Homer's The Iliad Cassandra's prediction of the fall of Troy was unheeded.
| Female | English |
| Cathy | Form of the Greek Catherine meaning pure.
| Female | English |
| Chenielle | | Female | |
| Cherie | Dear one: darling.
| Female | |
| Cinnabar | | Female | Hebrew |
| Cinnamon | | Female | Hebrew |
| Clarinet | | Female | Hebrew |
| Claudette | Feminine of Claude.
| Female | |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Corngold | | Female | |
| Cricket | A leaping insect | Female | Nature |
| Crookshanks | | Unisex | Hebrew |
| Crookshanks | Hermione's cat in the Harry Potter books | Unisex | |
| Crystal | Variant of Christiana. Follower of Christ.
| Female | |
| Crystal | Variant of Christiana. Follower of Christ.
| Female | |
| Cub | | Unisex | |
| Cyntia | Variant of Greek name Cynthia - one of the names of the mythological mood goddess Artemis referring to her birth on Mount Cynthus.
| Female | |
| Daisy | Day's eye. A flower name.
| Female | |
| Daisy | Day's eye. A flower name.
| Female | |
| Debra | Bee. Deborah was the Biblical prophetess who summoned Barak to battle against an army of invaders. After the battle she wrote a victory song which is part of the Book of Judges.
| Female | Spelling |
| Debralee | Bee. Deborah was the Biblical prophetess who summoned Barak to battle against an army of invaders. After the battle she wrote a victory song which is part of the Book of Judges.
| Female | |
| Delaney | From the elder tree grove.
| Female | Irish |
| Delia | visible from delos | Female | Greek |