Aileen is a distinctive girls' name in United States, ranking #567 in 2014 with 541 recorded births. The name reached its all-time peak in 2009 with 685 births ranking #454. Since 1996, the popularity has increased by 78.5%. In 2014, approximately 1 in every 3,301 girls born was named Aileen. STABLE Recent data shows the name is currently stable.