Illeana is a distinctive girls' name in United States, ranking #9970 in 2011 with 11 recorded births. The name reached its all-time peak in 2005 with 34 births ranking #4148. Since 1996, the popularity has increased by 22.2%. In 2011, approximately 1 in every 159,891 girls born was named Illeana. FALLING Recent data shows the name is currently falling.