Rosalio is a distinctive boys' name in United States, ranking #8692 in 2017 with 9 recorded births. This places Rosalio in the bottom 39% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2000 with 27 births ranking #3209. Since 1996, the popularity has decreased by 65.4%. In 2017, approximately 1 in every 205,591 boys born was named Rosalio. STABLE Recent data shows the name is currently stable.