Joslynn is a distinctive girls' name in United States, ranking #1704 in 2004 with 114 recorded births. The name reached its all-time peak in 2011 with 209 births ranking #1171. Since 1996, the popularity has increased by 159.1%. In 2004, approximately 1 in every 16,106 girls born was named Joslynn. FALLING Recent data shows the name is currently falling.