Alphonso is a distinctive boys' name in United States, ranking #4300 in 2015 with 23 recorded births. The name reached its all-time peak in 1996 with 83 births ranking #1314. Since 1996, the popularity has decreased by 72.3%. In 2015, approximately 1 in every 83,316 boys born was named Alphonso. STABLE Recent data shows the name is currently stable.