Joslynn is a distinctive girls' name in United States, ranking #1596 in 2014 with 135 recorded births. The name reached its all-time peak in 2011 with 209 births ranking #1171. Since 1996, the popularity has increased by 206.8%. In 2014, approximately 1 in every 13,229 girls born was named Joslynn. FALLING Recent data shows the name is currently falling.