Regan is a distinctive girls' name in England & Wales, ranking #4867 in 2025 with 4 recorded births. The name reached its all-time peak in 2004 with 61 births ranking #528. Since 1996, the popularity has decreased by 87.1%. In 2025, approximately 1 in every 63,320 girls born was named Regan. FALLING Recent data shows the name is currently falling.