Jessilyn is a distinctive girls' name in United States, ranking #8240 in 1998 with 11 recorded births. The name reached its all-time peak in 1999 with 21 births ranking #5108. Since 1996, the popularity has decreased by 38.9%. In 1998, approximately 1 in every 160,626 girls born was named Jessilyn. RISING Recent data shows the name is currently rising.