Aerin is a distinctive girls' name in United States, ranking #3749 in 2004 with 38 recorded births. The name reached its all-time peak in 2008 with 54 births ranking #3120. Since 1996, the popularity has increased by 123.5%. In 2004, approximately 1 in every 48,319 girls born was named Aerin. FALLING Recent data shows the name is currently falling.