Reyn is a distinctive boys' name in United States, ranking #11923 in 2001 with 5 recorded births. The name reached its all-time peak in 2007 with 12 births ranking #6987. Since 1996, the popularity has decreased by 50.0%. In 2001, approximately 1 in every 388,566 boys born was named Reyn. FALLING Recent data shows the name is currently falling.