Monterio is a distinctive boys' name in United States, ranking #9085 in 2002 with 7 recorded births. The name reached its all-time peak in 1996 with 17 births ranking #3966. Since 1996, the popularity has decreased by 58.8%. In 2002, approximately 1 in every 277,353 boys born was named Monterio. STABLE Recent data shows the name is currently stable.