Josslyn is a distinctive girls' name in United States, ranking #1318 in 2011 with 179 recorded births. The name reached its all-time peak in 2011 with 179 births ranking #1318. Since 1996, the popularity has increased by 1,888.9%. In 2011, approximately 1 in every 9,826 girls born was named Josslyn. FALLING Recent data shows the name is currently falling.