Hilo is a distinctive boys' name in United States, ranking #12923 in 2016 with 5 recorded births. This places Hilo 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 2018 with 6 births ranking #11297. In 2016, approximately 1 in every 379,442 boys born was named Hilo. STABLE Recent data shows the name is currently stable.