Alphonso is a distinctive boys' name in United States, ranking #1943 in 2002 with 57 recorded births. The name reached its all-time peak in 1996 with 83 births ranking #1314. Since 1996, the popularity has decreased by 31.3%. In 2002, approximately 1 in every 34,061 boys born was named Alphonso. STABLE Recent data shows the name is currently stable.