Hiro is a distinctive boys' name in United States, ranking #7321 in 2005 with 10 recorded births. This places Hiro in the bottom 45% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2016 with 77 births ranking #1906. In 2005, approximately 1 in every 199,715 boys born was named Hiro. FALLING Recent data shows the name is currently falling.