Ilyssa is a distinctive girls' name in United States, ranking #4568 in 1997 with 23 recorded births. The name reached its all-time peak in 2004 with 41 births ranking #3587. Since 1996, the popularity has increased by 53.3%. In 1997, approximately 1 in every 75,681 girls born was named Ilyssa. FALLING Recent data shows the name is currently falling.