| Meaning | noble, ready |
| Origin | German, Italian, Spanish |
| Gender | Boy |
| Popularity | Moderate |
| Length | 6 |
| Syllables | 3 |
| Syllabification | A-lon-zo |
Charisma practically radiates from Alonzo, a name that combines vintage charm with timeless masculinity in perfect proportion. The three syllables roll together smoothly, creating a rhythm that's both dignified and approachable. This choice offers parents something beyond the ordinary—a name with character, history, and undeniable style. Alonzo stands out without shouting, distinguishing itself through inherent quality rather than novelty. The name carries associations with strength and nobility while maintaining warmth and accessibility. It works exceptionally well in both casual and formal contexts, adapting to whatever situation life presents. Alonzo provides excellent nickname options while maintaining its impressive full form for important occasions. Parents selecting this name often appreciate its classic roots combined with contemporary coolness, its ability to feel both established and fresh simultaneously. The "z" adds a touch of flair without seeming contrived.
| Alexander |
| Alfonso |
| Alberto |
| Adrian |
| Antonio |
| Anthony |
| Adam |
| Alejandro |
| Angelo |
| Andrew |
| Armando |
| Alan |
| Al |
| Lon |
| Lonnie |
| Zo |
| Alonzo Mourning | Former professional basketball player |
| Alonzo Church | American mathematician and logician |
| Alonzo Babers | Olympic gold medalist in track and field |
| Alonzo Bodden | American stand-up comedian |
| Alonzo Herndon | African American entrepreneur and philanthropist |
| Alonzo Clemons | American sculptor with savant syndrome |
| Alonzo Carter | American football coach and former dancer |
| Alonzo F. Herndon, Jr. | American pilot and Tuskegee Airman |
| Alonzo Gee | Former professional basketball player |
| Alonzo Trier | Professional basketball player |
| Alonzo Harris | Character in the film "Training Day" |
| Alonzo Batilla | Character in the video game "Assassin's Creed Pirates" |
| Alonzo Smith | Character in the film "Meet Me in St. Louis" |
| Alonzo D. Emmerich | Character in the film "The Asphalt Jungle" |
| Alonzo D. Lunt | Character in the film "Waitress" |