Joslynn is a distinctive girls' name in United States, ranking #1785 in 2005 with 110 recorded births. The name reached its all-time peak in 2011 with 209 births ranking #1171. Since 1996, the popularity has increased by 150.0%. In 2005, approximately 1 in every 16,797 girls born was named Joslynn. FALLING Recent data shows the name is currently falling.