Alonzo is a masculine given name of Spanish and Italian origin. It is derived from the Visigothic name Adalfuns, a composite of the elements "adal" (noble) and "funs" (ready, eager, noble). It is related to the names Alfonso and Alphonso.
The name Alonzo has a historical association with nobility and royalty, particularly in Spain. Several Spanish kings and members of the royal families have borne variations of this name.
The name gained further prominence in English-speaking countries, especially in the United States, through literature and popular culture. A notable example is the character Alonzo Quixano, better known as Don Quixote, in Miguel de Cervantes' novel Don Quixote. This literary connection has contributed to the name's recognition and usage.
While less common now than in previous centuries, Alonzo remains a recognizable and occasionally used given name. It is generally considered a strong and classic name with historical and literary significance.