Josilyn is a distinctive girls' name in United States, ranking #3548 in 2008 with 46 recorded births. The name reached its all-time peak in 2006 with 69 births ranking #2613. Since 1996, the popularity has increased by 76.9%. In 2008, approximately 1 in every 41,103 girls born was named Josilyn. FALLING Recent data shows the name is currently falling.