| Name | Meaning | Gender | Origin |
|---|
| Coco | A pet name.
| Female | Spanish |
| Cocoa | cocoa Jumbo | Female | Color |
| Coffee Bean | | Unisex | Hebrew |
| Conrad | brave counsel | Male | |
| Cotton Ball | | Unisex | |
| Countess | Wife of a Count | Female | Word |
| Crookshanks | | Unisex | Hebrew |
| Crookshanks | Hermione's cat in the Harry Potter books | Unisex | |
| Cruiserweight | | Male | |
| Cruz | cross | Male | Spanish |
| Cub | | Unisex | |
| Cupcake | Small cake baked in a cup shaped container | Unisex | |
| Cutie | A cute character. | Female | |
| Cyan | greenish blue color | Male | English |
| Dacio | from Dacia.
| Male | |
| Dae | | Female | |
| Daffy | | Male | Hebrew |
| Dale | Lives in the valley
| Male | English |
| Damario | Masculine form of the Greek Damaris gentle.
| Male | Spanish |
| Dandy | An elegant man. | Unisex | |
| Dantae | Enduring. The poet Dante Alighieri wrote The Divine Comedy with its graphic description of medieval Hell known as Dante's Inferno.
| Male | |
| Darius | protector | Male | |
| Dazzle | | Female | Hebrew |
| Debbie | 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 | Short |
| Dedalus Diggle | Member, Order of the Phoenix.
| Male | |