| Name | Meaning | Gender | Origin |
|---|
| Butch | Masculine in appearance or manner. | Male | Nickname |
| Buzz | To move quickly and busily, to bustle | Male | Modern |
| Captain | One who commands or leads others. Officer in command of ship, aircraft, police or fire station. | Male | |
| Carlton | Free men's town.
| Male | |
| Charles | manly, strong | Male | |
| Charlie | a man: variant of Carl.
| Male | English |
| Chet | fortress, walled town | Male | English |
| Chuck | a man: variant of Carl.
| Male | English |
| Chuckles | | Male | Hebrew |
| Chunk | | Unisex | Hebrew |
| Crabby | | Unisex | Hebrew |
| Crow | | Male | Hebrew |
| Crush | | Unisex | Hebrew |
| Cruz | cross | Male | Spanish |
| Cuddles | To nestle or snuggle. | Unisex | |
| Dante | lasting | Male | Latin |
| Dash | To move with haste, to rush. Punctuation. Long sound in Morse code. | Male | English |
| David | Dearly loved
| Male | Hebrew |
| Dean | From the valley. | Male | English |
| Deb | Honey Bee | Unisex | English |
| Django | I awake | Male | |
| Doc | | Unisex | Hebrew |
| Dog | Domesticated carnivorous mammal. Dogs exhibit enormous genetic variety with over 2 different breed types. Man's best friend. | Unisex | |
| Don | World Leader | Male | English |
| Earl | A British nobleman equivalent to a European count | Male | English |