1) German boy name 
Alfonzo is a given name. Notable people with the name include: Surname: Given name: ...
Alfonzo is a German name for boys. The meaning is `ready for battle` The name Alfonzo is -as far as we know- only given to American boys. The name sounds like: Alfonz, Alfonse, Alfons, Alphonzo, Alfonzus Similar names are: Alonzo, Allonzo