Rosalio is a distinctive boys' name in United States, ranking #3682 in 1998 with 20 recorded births. The name reached its all-time peak in 2000 with 27 births ranking #3209. Since 1996, the popularity has decreased by 23.1%. In 1998, approximately 1 in every 95,566 boys born was named Rosalio. STABLE Recent data shows the name is currently stable.