Illeana is a distinctive girls' name in United States, ranking #11776 in 2019 with 8 recorded births. The name reached its all-time peak in 2005 with 34 births ranking #4148. Since 1996, the popularity has decreased by 11.1%. In 2019, approximately 1 in every 209,697 girls born was named Illeana. FALLING Recent data shows the name is currently falling.