Idalys is a distinctive girls' name in United States, ranking #12036 in 2004 with 8 recorded births. The name reached its all-time peak in 2002 with 21 births ranking #5536. Since 1996, the popularity has decreased by 27.3%. In 2004, approximately 1 in every 229,515 girls born was named Idalys. FALLING Recent data shows the name is currently falling.