Eilis is a distinctive girls' name in United States, ranking #12780 in 2009 with 8 recorded births. The name reached its all-time peak in 2018 with 20 births ranking #6090. Since 1996, the popularity has decreased by 33.3%. In 2009, approximately 1 in every 229,609 girls born was named Eilis. FALLING Recent data shows the name is currently falling.