Ilyssa is a distinctive girls' name in United States, ranking #5435 in 2001 with 21 recorded births. The name reached its all-time peak in 2004 with 41 births ranking #3587. Since 1996, the popularity has increased by 40.0%. In 2001, approximately 1 in every 85,741 girls born was named Ilyssa. FALLING Recent data shows the name is currently falling.