Regan is a distinctive girls' name in England & Wales, ranking #783 in 2006 with 39 recorded births. The name reached its all-time peak in 2004 with 61 births ranking #528. Since 1996, the popularity has increased by 25.8%. In 2006, approximately 1 in every 7,673 girls born was named Regan. FALLING Recent data shows the name is currently falling.