Aileen is a distinctive girls' name in United States, ranking #501 in 2007 with 645 recorded births. The name reached its all-time peak in 2009 with 685 births ranking #454. Since 1996, the popularity has increased by 112.9%. In 2007, approximately 1 in every 2,981 girls born was named Aileen. STABLE Recent data shows the name is currently stable.