Seiya is a distinctive boys' name in United States, ranking #10437 in 2015 with 7 recorded births. This places Seiya 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 2005 with 10 births ranking #7552. Since 1996, the popularity has increased by 16.7%. In 2015, approximately 1 in every 273,751 boys born was named Seiya. RISING Recent data shows the name is currently rising.