Aerin is a distinctive girls' name in United States, ranking #3732 in 1998 with 31 recorded births. The name reached its all-time peak in 2008 with 54 births ranking #3120. Since 1996, the popularity has increased by 82.4%. In 1998, approximately 1 in every 56,996 girls born was named Aerin. FALLING Recent data shows the name is currently falling.