Rosalio is a distinctive boys' name in United States, ranking #5393 in 2007 with 17 recorded births. The name reached its all-time peak in 2000 with 27 births ranking #3209. Since 1996, the popularity has decreased by 34.6%. In 2007, approximately 1 in every 122,073 boys born was named Rosalio. STABLE Recent data shows the name is currently stable.