Josilyn is a distinctive girls' name in United States, ranking #3100 in 2013 with 53 recorded births. The name reached its all-time peak in 2006 with 69 births ranking #2613. Since 1996, the popularity has increased by 103.8%. In 2013, approximately 1 in every 33,102 girls born was named Josilyn. FALLING Recent data shows the name is currently falling.