Idalys is a distinctive girls' name in United States, ranking #7778 in 1996 with 11 recorded births. This places Idalys in the top 49% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2002 with 21 births ranking #5536. In 1996, approximately 1 in every 159,360 girls born was named Idalys. FALLING Recent data shows the name is currently falling.