Htoo is a distinctive boys' name in United States, ranking #13269 in 2008 with 5 recorded births. This places Htoo 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 2014 with 10 births ranking #7767. In 2008, approximately 1 in every 407,989 boys born was named Htoo. FALLING Recent data shows the name is currently falling.