Aerin is a distinctive girls' name in United States, ranking #4202 in 1999 with 27 recorded births. The name reached its all-time peak in 2008 with 54 births ranking #3120. Since 1996, the popularity has increased by 58.8%. In 1999, approximately 1 in every 65,696 girls born was named Aerin. FALLING Recent data shows the name is currently falling.