Seiya is a distinctive boys' name in United States, ranking #9540 in 2021 with 8 recorded births. The name reached its all-time peak in 2005 with 10 births ranking #7552. Since 1996, the popularity has increased by 33.3%. In 2021, approximately 1 in every 218,530 boys born was named Seiya. RISING Recent data shows the name is currently rising.