| Name | Meaning | Gender | Origin |
|---|
| Buddy | Herald | Male | English |
| Bullet | A metal cylinder shot from a rifle or gun. Used to express speed. | Unisex | English |
| Bully | An overbearing person, a ruffian | Unisex | English |
| Buster | One that breaks up something | Unisex | American English |
| Caesar | Long Hair | Male | Latin |
| Cain | A spear | Male | Hebrew |
| Cal | Bald | Unisex | French |
| Cally | Lark | Unisex | English |
| Carlo | Free man | Male | German |
| Carrick | Rock | Male | Gaelic |
| Casey | From Cayce | Male | American English |
| Casper | Treasurer | Male | Persian |
| Cassy | Abbreviation Of Cassandra. Unheeded Prophetess. In Homer's The Iliad Cassandra's Prediction Of The Fall Of Troy Was Unheeded. | Unisex | English |
| Cesar | Long Haired | Male | English |
| Chaos | Gaping void | Unisex | Greek |
| Charlie | Free man | Unisex | Germanic |
| Checkers | | Unisex | Hebrew |
| Chester | Camp | Male | Latin |
| Chico | Boy | Male | Spanish |
| Chief | One in highest rank or authority. | Unisex | English |
| Chum | | Unisex | Hebrew |
| Clancy | Red | Male | Gaelic |
| Clarence | Of Clare | Male | English |
| Clem | Merciful, mild, gentle | Male | Latin |
| Clyde | Refers To The Scottish Clyde River. | Male | Gaelic |
| Coco | A Pet Name. | Unisex | French |
| Cody | Descendant of Cuidighthigh | Male | Gaelic |
| Cooper | Barrel maker | Male | English |
| Damian | To tame | Male | Greek |
| Demon | Demon | Unisex | Greek |