Blain is a distinctive boys' name in United States, ranking #1989 in 2003 with 58 recorded births. The name reached its all-time peak in 2003 with 58 births ranking #1989. Since 1996, the popularity has increased by 87.1%. In 2003, approximately 1 in every 34,056 boys born was named Blain. RISING Recent data shows the name is currently rising.