Aileen is a distinctive girls' name in United States, ranking #648 in 2017 with 456 recorded births. The name reached its all-time peak in 2009 with 685 births ranking #454. Since 1996, the popularity has increased by 50.5%. In 2017, approximately 1 in every 3,785 girls born was named Aileen. STABLE Recent data shows the name is currently stable.