Rosalio is a distinctive boys' name in United States, ranking #5231 in 2005 with 16 recorded births. The name reached its all-time peak in 2000 with 27 births ranking #3209. Since 1996, the popularity has decreased by 38.5%. In 2005, approximately 1 in every 124,822 boys born was named Rosalio. STABLE Recent data shows the name is currently stable.