Buckhead
Buckingham
Buckminster
Bucko
Buckshot
Buckwheat
Bucky
Buco
Bud
Bud Lite
Budabut
Budd
Buddette (a female Buddy)
Buddha
Buddutyheado
Buddy
Buddy Boy
Buddy Cat
Buddy Gecko
Buderskottch
Budha
Budmeister
Budroe
Budrow
Budster
Budweiser
Bud-wiser
Buff
Buffalo
Buffalo Bill