Ronaldo is a distinctive boys' name in United States, ranking #1837 in 2019 with 83 recorded births. The name reached its all-time peak in 1998 with 359 births ranking #552. Since 1996, the popularity has increased by 20.3%. In 2019, approximately 1 in every 21,607 boys born was named Ronaldo. STABLE Recent data shows the name is currently stable.