Aileen is a distinctive girls' name in United States, ranking #673 in 2018 with 436 recorded births. The name reached its all-time peak in 2009 with 685 births ranking #454. Since 1996, the popularity has increased by 43.9%. In 2018, approximately 1 in every 3,900 girls born was named Aileen. STABLE Recent data shows the name is currently stable.