Joslynn is a distinctive girls' name in United States, ranking #1749 in 2015 with 120 recorded births. The name reached its all-time peak in 2011 with 209 births ranking #1171. Since 1996, the popularity has increased by 172.7%. In 2015, approximately 1 in every 14,872 girls born was named Joslynn. FALLING Recent data shows the name is currently falling.