Ileen is a distinctive girls' name in United States, ranking #5614 in 2012 with 24 recorded births. The name reached its all-time peak in 2008 with 29 births ranking #5065. Since 1996, the popularity has increased by 300.0%. In 2012, approximately 1 in every 73,364 girls born was named Ileen. STABLE Recent data shows the name is currently stable.