Illeana is a distinctive girls' name in United States, ranking #6293 in 1999 with 16 recorded births. The name reached its all-time peak in 2005 with 34 births ranking #4148. Since 1996, the popularity has increased by 77.8%. In 1999, approximately 1 in every 110,861 girls born was named Illeana. FALLING Recent data shows the name is currently falling.