Illeana is a distinctive girls' name in United States, ranking #4534 in 2004 with 30 recorded births. The name reached its all-time peak in 2005 with 34 births ranking #4148. Since 1996, the popularity has increased by 233.3%. In 2004, approximately 1 in every 61,204 girls born was named Illeana. FALLING Recent data shows the name is currently falling.