| Name | Meaning | Gender | Origin |
|---|
| Bruno | Armour | Male | Germanic |
| Buck | He-goat | Male | English |
| Buckles | | Unisex | Hebrew |
| Buddy | Herald | Male | English |
| Bullet | A metal cylinder shot from a rifle or gun. Used to express speed. | Unisex | English |
| Buster | One that breaks up something | Unisex | American English |
| Butch | Masculine in appearance or manner. | Unisex | American English |
| Buttons | | Unisex | Hebrew |
| Carl | Man | Male | German |
| Cecil | Blind | Male | Latin |
| Chance | Good fortune | Male | English |
| Charlie | Free man | Unisex | Germanic |
| Chase | Huntsman | Male | English |
| Chester | Camp | Male | Latin |
| Clifford | Cliff ford | Male | English |
| Colin | Dove | Male | Gaelic |
| Comet | A celestial body | Unisex | English |
| Copernicus | | Unisex | Hebrew |
| Cujo | | Unisex | Hebrew |
| Cyril | Lord | Male | Greek |
| Digby | Dyke farm, dyke settlement | Male | English |
| Digger | One that digs. | Unisex | English |
| Dinky | Dog on National Lampoon's Vacation | Unisex | English |
| Dog | Domesticated carnivorous mammal. Dogs exhibit enormous genetic variety with over 2 different breed types. Man's best friend. | Unisex | English |
| Don | World rule | Male | Gaelic |
| Dougal | Black stranger | Male | Gaelic |
| Duchess | From the AristoCats | Unisex | English |
| Dudley | Wood or clearing of Dudda | Male | English |
| Duke | Duke | Male | English |
| Earl | Nobleman | Male | English |