Rosalio is a distinctive boys' name in United States, ranking #5717 in 2008 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 2008, approximately 1 in every 127,497 boys born was named Rosalio. STABLE Recent data shows the name is currently stable.