Joslynn is a distinctive girls' name in United States, ranking #1994 in 2003 with 91 recorded births. The name reached its all-time peak in 2011 with 209 births ranking #1171. Since 1996, the popularity has increased by 106.8%. In 2003, approximately 1 in every 20,077 girls born was named Joslynn. FALLING Recent data shows the name is currently falling.