Josilyn is a distinctive girls' name in United States, ranking #2613 in 2006 with 69 recorded births. The name reached its all-time peak in 2006 with 69 births ranking #2613. Since 1996, the popularity has increased by 165.4%. In 2006, approximately 1 in every 27,552 girls born was named Josilyn. FALLING Recent data shows the name is currently falling.