Rosalio is a distinctive boys' name in United States, ranking #4338 in 2006 with 22 recorded births. The name reached its all-time peak in 2000 with 27 births ranking #3209. Since 1996, the popularity has decreased by 15.4%. In 2006, approximately 1 in every 93,415 boys born was named Rosalio. STABLE Recent data shows the name is currently stable.