Jessilyn is a distinctive girls' name in United States, ranking #6414 in 2009 with 21 recorded births. The name reached its all-time peak in 1999 with 21 births ranking #5108. Since 1996, the popularity has increased by 16.7%. In 2009, approximately 1 in every 87,470 girls born was named Jessilyn. RISING Recent data shows the name is currently rising.