Hiroto is a distinctive boys' name in United States, ranking #9829 in 1997 with 5 recorded births. This places Hiroto in the bottom 9% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2009 with 14 births ranking #6224. In 1997, approximately 1 in every 377,018 boys born was named Hiroto. FALLING Recent data shows the name is currently falling.