Fonz \f(o)-nz\ as a boy's name is a variant of Alfonso (Italian, Spanish) and Alphonse (Old German), and the meaning of Fonz is "ready for battle".

The baby name Fonz sounds like Fonzo and Fons. Other similar baby names are Fonzie, Phonz, Fane, Fionn, Finn, Fin, Fitz, Fonso, Fox, Foxe, Franz, Lonzo, Lonza, Pons, Vonn and Von.