Ronaldo is a distinctive boys' name in United States, ranking #1474 in 1996 with 69 recorded births. This places Ronaldo in the top 14% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1998 with 359 births ranking #552. In 1996, approximately 1 in every 27,453 boys born was named Ronaldo. STABLE Recent data shows the name is currently stable.