Hiro is a distinctive boys' name in United States, ranking #2591 in 2018 with 49 recorded births. This places Hiro in the top 18% 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 2018, approximately 1 in every 37,050 boys born was named Hiro. FALLING Recent data shows the name is currently falling.