Blain is a distinctive girls' name in United States, ranking #15549 in 2009 with 6 recorded births. This places Blain in the bottom 23% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2006 with 6 births ranking #15436. In 2009, approximately 1 in every 306,145 girls born was named Blain. FALLING Recent data shows the name is currently falling.