Rosalio is a distinctive boys' name in United States, ranking #8635 in 2011 with 9 recorded births. The name reached its all-time peak in 2000 with 27 births ranking #3209. Since 1996, the popularity has decreased by 65.4%. In 2011, approximately 1 in every 210,999 boys born was named Rosalio. STABLE Recent data shows the name is currently stable.