Reagen is a distinctive girls' name in United States, ranking #8508 in 2018 with 13 recorded births. The name reached its all-time peak in 2008 with 35 births ranking #4432. Since 1996, the popularity has decreased by 31.6%. In 2018, approximately 1 in every 130,802 girls born was named Reagen. FALLING Recent data shows the name is currently falling.