Meaning A boy's name of Spanish origin, it means "Form of Alphonse: see Alfonso." Origin of Alanzo Spanish Popular Middle Names Eleazar, Fidel, Noah Pronunciation 🔊 Listen Alanzo Similar Names Alonza Alion Fernand Fonsie Fonso Fonzell Fonzie Bemabe Buinton Gabrio Year by Year Popularity of Alanzo