| Name | Meaning | Gender | Origin |
|---|
| Buttercup | A bright yellow flowered plant. Also a term of endearment. | Unisex | English |
| Butters | After the character in the South Park cartoons | Unisex | English |
| Butterscotch | | Unisex | Hebrew |
| Caltha | Yellow Flower | Female | Latin |
| Caramel | A smooth chewy candy | Unisex | English |
| Casey | From Cayce | Male | American English |
| Cashew | A kidney shaped nut. | Unisex | English |
| Cassandra | She who entangles men | Female | Greek |
| Cassidy | Curly | Male | Gaelic |
| Charlie | Free man | Unisex | Germanic |
| Chase | Huntsman | Male | English |
| Cheerio | Brand of breakfast cereal | Unisex | English |
| Cheese | | Unisex | Hebrew |
| Chelsey | Chalk landing place | Unisex | English |
| Cheyenne | Speak incoherently | Female | American English |
| Chiquita | Small one | Female | Spanish |
| Chloe | Means | Female | English |
| Christa | Follower of Christ | Female | Latin |
| Chruse | Golden One | Female | Greek |
| Chrystal | Crystal | Female | English |
| Colleen | Young female | Female | Gaelic |
| Cooper | Barrel maker | Male | English |
| Copper | A reddish brown metal - as in copper penny coins. Also slang for a police officer. | Unisex | English |
| Crackers | | Unisex | Hebrew |
| Cressida | Golden | Female | Greek |
| Crystal | Crystal | Female | English |
| Cupcake | Small cake baked in a cup shaped container | Unisex | English |
| Daisy | Day's eye | Female | English |
| Dandelion | A yellow rosette shaped flower. | Unisex | English |
| Debbie | A bee | Female | Hebrew |