| Name | Meaning | Gender | Origin |
|---|
| Buzz | To move quickly and busily, to bustle | Male | English |
| Caesar | Long Hair | Male | Latin |
| Cain | A spear | Male | Hebrew |
| Caine | Reed, cane | Unisex | English |
| Calhoun | Warrior | Male | English |
| Camden | Uncertain, perhaps winding valley | Male | English |
| Cannon | Canon | Male | English |
| Captain | A captain | Unisex | English |
| Casper | Treasurer | Male | Persian |
| Ceasar | Hairy Child, Long Haired | Male | Latin |
| Chadwick | Ceadda's dairy farm | Male | English |
| Chaz | Free man | Male | German |
| Cheveyo | Hopi mythological monster | Male | Native American |
| Chevy | Knight | Unisex | French |
| Chief | One in highest rank or authority. | Unisex | English |
| Chopper | Slang for helicopter. One who chops or cuts. | Unisex | English |
| Chucky | Free man | Unisex | German |
| Clancy | Red | Male | Gaelic |
| Clint | Settlement on the river Glyme | Male | English |
| Colt | Young male horse | Male | English |
| Comet | A celestial body | Unisex | English |
| Cougar | A large powerful American mountain cat | Unisex | English |
| Crash | To smash into things, to break or dash to pieces. To join a party without invitation. | Unisex | English |
| Crimson | Crimson, red | Unisex | English |
| Cruella | | Unisex | Hebrew |
| Crusher | | Unisex | Hebrew |
| Cujo | | Unisex | Hebrew |
| Cy | Sun | Male | Persian |
| Cyclops | One eyed monster | Unisex | English |
| Cyrus | Sun | Male | Persian |