| Name | Meaning | Gender | Origin |
|---|
| Bubblegum | | Unisex | Hebrew |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Male | |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Male | |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buffy | God's promise | Female | 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 | |
| Bunny | little rabbit | Female | Nickname |
| Burgundy | Region Of France, Color Of Wine | Male | English |
| Buttercup | A bright yellow flowered plant. Also a term of endearment. | Female | |
| Butternut | | Unisex | Hebrew |
| Butterscotch | | Male | Hebrew |
| Button | | Unisex | Hebrew |
| Buttons | | Male | Hebrew |
| Callie | Lark
| Female | Greek |
| Calliope | beautiful voice | Female | Greek |
| Calypso | Greek for concealor. A type of music originating in the West Indies. Also a satellite of Saturn. | Male | Greek |
| Cameron | Clan name meaning Bent nose.
| Male | Scottish |
| Camilla | young ceremonial attendant | Female | Latin |
| Candy | Confectionery made with sugar. | Female | English |
| Cappuccino | | Unisex | Hebrew |
| Cappuccino | | Unisex | Hebrew |
| Caramel | A smooth chewy candy | Unisex | |
| Carly | Little and womanly. Alternate Spelling: Carlie.
| Female | Feminine |
| Carmen | garden, field of fruit, song. One who has a beautiful voice. | Female | Spanish |