Joslynn is a distinctive girls' name in United States, ranking #1195 in 2010 with 203 recorded births. The name reached its all-time peak in 2011 with 209 births ranking #1171. Since 1996, the popularity has increased by 361.4%. In 2010, approximately 1 in every 8,755 girls born was named Joslynn. FALLING Recent data shows the name is currently falling.