Monterio is a distinctive boys' name in United States, ranking #11988 in 2009 with 6 recorded births. The name reached its all-time peak in 1996 with 17 births ranking #3966. Since 1996, the popularity has decreased by 64.7%. In 2009, approximately 1 in every 330,551 boys born was named Monterio. STABLE Recent data shows the name is currently stable.