Joslynn is a distinctive girls' name in United States, ranking #1442 in 2009 with 162 recorded births. The name reached its all-time peak in 2011 with 209 births ranking #1171. Since 1996, the popularity has increased by 268.2%. In 2009, approximately 1 in every 11,339 girls born was named Joslynn. FALLING Recent data shows the name is currently falling.