Joslynn is a distinctive girls' name in United States, ranking #3255 in 1998 with 38 recorded births. The name reached its all-time peak in 2011 with 209 births ranking #1171. Since 1996, the popularity has decreased by 13.6%. In 1998, approximately 1 in every 46,497 girls born was named Joslynn. FALLING Recent data shows the name is currently falling.