Illeana is a distinctive girls' name in United States, ranking #10155 in 1997 with 8 recorded births. This places Illeana in the bottom 37% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2005 with 34 births ranking #4148. Since 1996, the popularity has decreased by 11.1%. In 1997, approximately 1 in every 217,582 girls born was named Illeana. FALLING Recent data shows the name is currently falling.