Regan is a moderately popular boys' name in England & Wales, ranking #269 in 2010 with 172 recorded births. The name reached its all-time peak in 1999 with 233 births ranking #151. Since 1996, the popularity has increased by 26.5%. In 2010, approximately 1 in every 2,013 boys born was named Regan. FALLING Recent data shows the name is currently falling.