Alphonso is a distinctive boys' name in United States, ranking #2350 in 2006 with 53 recorded births. The name reached its all-time peak in 1996 with 83 births ranking #1314. Since 1996, the popularity has decreased by 36.1%. In 2006, approximately 1 in every 38,776 boys born was named Alphonso. STABLE Recent data shows the name is currently stable.