Isyss is a distinctive girls' name in United States, ranking #1468 in 2003 with 133 recorded births. This places Isyss in the top 8% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2003 with 133 births ranking #1468. In 2003, approximately 1 in every 13,737 girls born was named Isyss. STABLE Recent data shows the name is currently stable.