Joslynn is a distinctive girls' name in United States, ranking #1904 in 2002 with 93 recorded births. The name reached its all-time peak in 2011 with 209 births ranking #1171. Since 1996, the popularity has increased by 111.4%. In 2002, approximately 1 in every 19,321 girls born was named Joslynn. FALLING Recent data shows the name is currently falling.