Ryuu is a distinctive boys' name in United States, ranking #9498 in 2013 with 8 recorded births. This places Ryuu in the bottom 32% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2012 with 11 births ranking #7451. In 2013, approximately 1 in every 236,407 boys born was named Ryuu. FALLING Recent data shows the name is currently falling.