Idalys is a distinctive girls' name in United States, ranking #5662 in 1998 with 18 recorded births. The name reached its all-time peak in 2002 with 21 births ranking #5536. Since 1996, the popularity has increased by 63.6%. In 1998, approximately 1 in every 98,161 girls born was named Idalys. FALLING Recent data shows the name is currently falling.