Eilis is a distinctive girls' name in United States, ranking #9587 in 2001 with 10 recorded births. The name reached its all-time peak in 2018 with 20 births ranking #6090. Since 1996, the popularity has decreased by 16.7%. In 2001, approximately 1 in every 180,056 girls born was named Eilis. FALLING Recent data shows the name is currently falling.