Aileen is a distinctive girls' name in United States, ranking #703 in 1996 with 303 recorded births. This places Aileen in the top 4% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2009 with 685 births ranking #454. In 1996, approximately 1 in every 5,785 girls born was named Aileen. STABLE Recent data shows the name is currently stable.