Rayn is a distinctive boys' name in United States, ranking #5378 in 2011 with 17 recorded births. The name reached its all-time peak in 2011 with 17 births ranking #5378. Since 1996, the popularity has increased by 142.9%. In 2011, approximately 1 in every 111,705 boys born was named Rayn. RISING Recent data shows the name is currently rising.