Rosio is a distinctive girls' name in United States, ranking #3456 in 2003 with 42 recorded births. The name reached its all-time peak in 1996 with 64 births ranking #2144. Since 1996, the popularity has decreased by 34.4%. In 2003, approximately 1 in every 43,501 girls born was named Rosio. STABLE Recent data shows the name is currently stable.