Illeana is a distinctive girls' name in United States, ranking #8173 in 2003 with 13 recorded births. The name reached its all-time peak in 2005 with 34 births ranking #4148. Since 1996, the popularity has increased by 44.4%. In 2003, approximately 1 in every 140,542 girls born was named Illeana. FALLING Recent data shows the name is currently falling.