Rosalio is a distinctive boys' name in United States, ranking #7575 in 2025 with 11 recorded births. This places Rosalio in the bottom 46% 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 57.7%. In 2025, approximately 1 in every 155,280 boys born was named Rosalio. STABLE Recent data shows the name is currently stable.