Josslyn is a distinctive girls' name in United States, ranking #4510 in 1999 with 25 recorded births. The name reached its all-time peak in 2011 with 179 births ranking #1318. Since 1996, the popularity has increased by 177.8%. In 1999, approximately 1 in every 70,951 girls born was named Josslyn. FALLING Recent data shows the name is currently falling.