Rosario is a distinctive boys' name in United States, ranking #5161 in 2025 with 19 recorded births. The name reached its all-time peak in 1999 with 41 births ranking #2257. Since 1996, the popularity has decreased by 48.6%. In 2025, approximately 1 in every 89,899 boys born was named Rosario. FALLING Recent data shows the name is currently falling.