Joslynn is a distinctive girls' name in United States, ranking #2523 in 2001 with 61 recorded births. The name reached its all-time peak in 2011 with 209 births ranking #1171. Since 1996, the popularity has increased by 38.6%. In 2001, approximately 1 in every 29,517 girls born was named Joslynn. FALLING Recent data shows the name is currently falling.