Ronaldo is a distinctive boys' name in United States, ranking #1169 in 2014 with 161 recorded births. The name reached its all-time peak in 1998 with 359 births ranking #552. Since 1996, the popularity has increased by 133.3%. In 2014, approximately 1 in every 11,928 boys born was named Ronaldo. STABLE Recent data shows the name is currently stable.