ButterballmEnglish (American, Rare) From the English word butterball, used as an informal nickname. This nickname was given to an American football player Paul Scull (1907-1997). This name can also be used for pets.
ButterflyfEnglish (Modern) Used to invoke the brilliantly-colored winged insect, which is widely seen as a symbol of metamorphosis, renewal, and rebirth, as well as one of youth and beauty. This is the birth name of a noted Australian folk singer, Butterfly Boucher, among others.
ButtonmEnglish The name of Button Gwinnett, one of the signatories (first signature on the left) on the United States Declaration of Independence.
ButtsmAmerican (Rare) Transferred use of the surname Butts or a nickname with meaning particular to the bearer. Notable namesake, professional baseball player, Albert "Butts" Wagner was the older brother of baseball great Honus Wagner.