Alonzo is a distinctive boys' name in United States, ranking #527 in 2015 with 542 recorded births. The name reached its all-time peak in 2022 with 651 births ranking #471. Since 1996, the popularity has increased by 33.2%. In 2015, approximately 1 in every 3,536 boys born was named Alonzo. STABLE Recent data shows the name is currently stable.