Josslyn is a distinctive girls' name in United States, ranking #2843 in 2005 with 58 recorded births. The name reached its all-time peak in 2011 with 179 births ranking #1318. Since 1996, the popularity has increased by 544.4%. In 2005, approximately 1 in every 31,857 girls born was named Josslyn. FALLING Recent data shows the name is currently falling.