Brayn is a distinctive boys' name in United States, ranking #5064 in 2003 with 15 recorded births. The name reached its all-time peak in 2003 with 15 births ranking #5064. Since 1996, the popularity has increased by 66.7%. In 2003, approximately 1 in every 131,685 boys born was named Brayn. FALLING Recent data shows the name is currently falling.