Josilyn is a distinctive girls' name in United States, ranking #2767 in 2007 with 66 recorded births. The name reached its all-time peak in 2006 with 69 births ranking #2613. Since 1996, the popularity has increased by 153.8%. In 2007, approximately 1 in every 29,128 girls born was named Josilyn. FALLING Recent data shows the name is currently falling.