Ronaldo is a distinctive boys' name in United States, ranking #1899 in 2021 with 81 recorded births. The name reached its all-time peak in 1998 with 359 births ranking #552. Since 1996, the popularity has increased by 17.4%. In 2021, approximately 1 in every 21,583 boys born was named Ronaldo. STABLE Recent data shows the name is currently stable.