Jessilyn is a distinctive girls' name in United States, ranking #8248 in 2014 with 14 recorded births. The name reached its all-time peak in 1999 with 21 births ranking #5108. Since 1996, the popularity has decreased by 22.2%. In 2014, approximately 1 in every 127,567 girls born was named Jessilyn. RISING Recent data shows the name is currently rising.