Regan is a distinctive boys' name in United States, ranking #1451 in 1997 with 75 recorded births. The name reached its all-time peak in 2007 with 81 births ranking #1809. Since 1996, the popularity has increased by 38.9%. In 1997, approximately 1 in every 25,135 boys born was named Regan. FALLING Recent data shows the name is currently falling.