Regan is a moderately popular boys' name in England & Wales, ranking #219 in 1997 with 148 recorded births. This places Regan in the top 6% of ranked UK boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 1999 with 233 births ranking #151. In 1997, approximately 1 in every 2,125 boys born was named Regan. FALLING Recent data shows the name is currently falling.