Taishi is a distinctive boys' name in United States, ranking #10825 in 2009 with 7 recorded births. This places Taishi in the bottom 26% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 10 births ranking #7992. In 2009, approximately 1 in every 283,329 boys born was named Taishi. FALLING Recent data shows the name is currently falling.