Joslynn is a distinctive girls' name in United States, ranking #1270 in 2012 with 189 recorded births. The name reached its all-time peak in 2011 with 209 births ranking #1171. Since 1996, the popularity has increased by 329.5%. In 2012, approximately 1 in every 9,316 girls born was named Joslynn. FALLING Recent data shows the name is currently falling.