Jessilyn is a distinctive girls' name in United States, ranking #10452 in 2015 with 10 recorded births. The name reached its all-time peak in 1999 with 21 births ranking #5108. Since 1996, the popularity has decreased by 44.4%. In 2015, approximately 1 in every 178,465 girls born was named Jessilyn. RISING Recent data shows the name is currently rising.