Ilyssa is a distinctive girls' name in United States, ranking #12267 in 2015 with 8 recorded births. The name reached its all-time peak in 2004 with 41 births ranking #3587. Since 1996, the popularity has decreased by 46.7%. In 2015, approximately 1 in every 223,082 girls born was named Ilyssa. FALLING Recent data shows the name is currently falling.