Ileen is a distinctive girls' name in United States, ranking #5449 in 2009 with 26 recorded births. The name reached its all-time peak in 2008 with 29 births ranking #5065. Since 1996, the popularity has increased by 333.3%. In 2009, approximately 1 in every 70,649 girls born was named Ileen. STABLE Recent data shows the name is currently stable.