Reagen is a distinctive girls' name in United States, ranking #7814 in 2010 with 16 recorded births. The name reached its all-time peak in 2008 with 35 births ranking #4432. Since 1996, the popularity has decreased by 15.8%. In 2010, approximately 1 in every 111,083 girls born was named Reagen. FALLING Recent data shows the name is currently falling.