Ileen is a distinctive girls' name in United States, ranking #5018 in 2010 with 28 recorded births. The name reached its all-time peak in 2008 with 29 births ranking #5065. Since 1996, the popularity has increased by 366.7%. In 2010, approximately 1 in every 63,476 girls born was named Ileen. STABLE Recent data shows the name is currently stable.