The meaning of Fonzie is ‘ready for battle’. This name has been traditionally given to boys. There are two equally significant theories surrounding the origin of this name. The first one states that Fonzie originated in the Old German language. It came from the Old German name Alfonso. However, according to the second theory, Fonzie has a Latin origin and is derived from the Latin name Alphonse. In both these theories, the name has the same meaning. There are several variants of Fonzie. These are Fonzo, Fonso, Fonsie, and Fonzell. Fonzie has six characters and two syllables. The name is shared by the popular character from the American sitcom ‘Happy Days’. According to Social Security Administration, Fonzie’s popularity peaked in 1913, when it ranked 5,012.