Aileen is a distinctive girls' name in England & Wales, ranking #3035 in 2025 with 8 recorded births. The name reached its all-time peak in 1996 with 12 births ranking #1434. Since 1996, the popularity has decreased by 33.3%. In 2025, approximately 1 in every 31,660 girls born was named Aileen. FALLING Recent data shows the name is currently falling.