| Name | Meaning | Gender | Origin |
|---|
| Buddy | Herald | Male | English |
| Bug | An insect. A disease-producing microorganism. An error in coding or logic that causes a malfunction in a computer a program. An electronic listening device. An enthusiasm. Slang for annoy. | Unisex | English |
| Bugsy | | Unisex | Hebrew |
| Buster | One that breaks up something | Unisex | American English |
| Buttercup | A bright yellow flowered plant. Also a term of endearment. | Unisex | English |
| Buttons | | Unisex | Hebrew |
| Buzz | To move quickly and busily, to bustle | Male | English |
| Cal | Bald | Unisex | French |
| Calder | Uncertain, perhaps cold | Male | Norse |
| Calvin | Bald | Male | French |
| Camden | Uncertain, perhaps winding valley | Male | English |
| Cameron | Crooked nose | Unisex | Gaelic |
| Capone | | Unisex | Hebrew |
| Casey | From Cayce | Male | American English |
| Cassidy | Curly | Male | Gaelic |
| Channing | Knowing | Male | English |
| Charlie | Free man | Unisex | Germanic |
| Chauncey | Chancellor: Fortune: A Gamble. | Male | English |
| Chester | Camp | Male | Latin |
| Chica | Pet Name Meaning Little Girl. | Unisex | English |
| Chichi | Loving | Unisex | Korean |
| Chico | Boy | Male | Spanish |
| Chipper | Lively spirits, cheerful. Chip off the old block. | Unisex | English |
| Cinder | | Unisex | Hebrew |
| Clyde | Refers To The Scottish Clyde River. | Male | Gaelic |
| Coco | A Pet Name. | Unisex | French |
| Cody | Descendant of Cuidighthigh | Male | Gaelic |
| Comet | A celestial body | Unisex | English |
| Cookie | A small flat, crisp cake | Unisex | English |
| Cooper | Barrel maker | Male | English |