| Name | Meaning | Gender | Origin |
|---|
| Butch | Masculine in appearance or manner. | Unisex | American English |
| Buttercup | A bright yellow flowered plant. Also a term of endearment. | Unisex | English |
| Buzz | To move quickly and busily, to bustle | Male | English |
| Cairo | Victorious one | Unisex | Arabic |
| Carson | Son Of Carr | Male | Gaelic |
| Casey | From Cayce | Male | American English |
| Casper | Treasurer | Male | Persian |
| Cassius | Empty | Male | Latin |
| Cha-cha | | Unisex | Hebrew |
| Chance | Good fortune | Male | English |
| Chaos | Gaping void | Unisex | Greek |
| Charlie | Free man | Unisex | Germanic |
| Chen | Grace of God | Male | Hebrew |
| Chester | Camp | Male | Latin |
| Chevy | Knight | Unisex | French |
| Chewy | Needing chewing. | Unisex | English |
| Chico | Boy | Male | Spanish |
| Chip | Free man | Male | German |
| Christian | Follower of Christ | Male | Latin |
| Chubbs | Rounded and plump. | Unisex | English |
| Chuck | Free man | Male | German |
| Coco | A Pet Name. | Unisex | French |
| Cocoa | Cocoa Jumbo | Unisex | English |
| Coconut | Edible white flesh of the coconut palm tree. | Unisex | English |
| Cody | Descendant of Cuidighthigh | Male | Gaelic |
| Comet | A celestial body | Unisex | English |
| Cookie | A small flat, crisp cake | Unisex | English |
| Cory | God's peace | Unisex | Germanic |
| Cuddles | To nestle or snuggle. | Unisex | English |
| Cupid | Desire | Unisex | Latin |