Leoncio is a distinctive boys' name in United States, ranking #8060 in 2009 with 10 recorded births. This places Leoncio in the bottom 45% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2007 with 16 births ranking #5581. In 2009, approximately 1 in every 198,331 boys born was named Leoncio. RISING Recent data shows the name is currently rising.