Rosario is a distinctive girls' name in United States, ranking #1165 in 1999 with 167 recorded births. This places Rosario in the top 7% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 167 births ranking #1165. In 1999, approximately 1 in every 10,621 girls born was named Rosario. RISING Recent data shows the name is currently rising.