Brain is a distinctive boys' name in United States, ranking #5850 in 2004 with 13 recorded births. The name reached its all-time peak in 1998 with 32 births ranking #2602. Since 1996, the popularity has decreased by 56.7%. In 2004, approximately 1 in every 152,677 boys born was named Brain. FALLING Recent data shows the name is currently falling.