Blain is a distinctive boys' name in United States, ranking #2353 in 1998 with 37 recorded births. The name reached its all-time peak in 2003 with 58 births ranking #1989. Since 1996, the popularity has increased by 19.4%. In 1998, approximately 1 in every 51,657 boys born was named Blain. RISING Recent data shows the name is currently rising.