Rosalio is a distinctive boys' name in United States, ranking #3047 in 1997 with 25 recorded births. This places Rosalio in the top 28% 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. In 1997, approximately 1 in every 75,404 boys born was named Rosalio. STABLE Recent data shows the name is currently stable.