Monterio is a distinctive boys' name in United States, ranking #13946 in 2008 with 5 recorded births. The name reached its all-time peak in 1996 with 17 births ranking #3966. Since 1996, the popularity has decreased by 70.6%. In 2008, approximately 1 in every 407,989 boys born was named Monterio. STABLE Recent data shows the name is currently stable.