Reagen is a distinctive girls' name in United States, ranking #7623 in 1997 with 12 recorded births. The name reached its all-time peak in 2008 with 35 births ranking #4432. Since 1996, the popularity has decreased by 36.8%. In 1997, approximately 1 in every 145,055 girls born was named Reagen. FALLING Recent data shows the name is currently falling.