Alonzo is a common given name that has roots in various cultures, particularly in Spanish and Italian. It is derived from the Gothic name "Adalfuns," which means "noble and ready." The name has been popularized in various forms, including Alfonso and Alonzo, and is often associated with strong leadership qualities. In popular culture, Alonzo has appeared in various films, books, and television shows. One notable character is Alonzo Harris from the movie "Training Day," portrayed by Denzel Washington. This character is known for his complex personality and moral ambiguity, contributing to the name's association with strong, sometimes controversial figures.