Aileen is a distinctive girls' name in United States, ranking #546 in 2002 with 505 recorded births. The name reached its all-time peak in 2009 with 685 births ranking #454. Since 1996, the popularity has increased by 66.7%. In 2002, approximately 1 in every 3,558 girls born was named Aileen. STABLE Recent data shows the name is currently stable.