Joslin is a distinctive girls' name in United States, ranking #6547 in 2019 with 18 recorded births. The name reached its all-time peak in 2010 with 67 births ranking #2677. Since 1996, the popularity has decreased by 14.3%. In 2019, approximately 1 in every 93,198 girls born was named Joslin. FALLING Recent data shows the name is currently falling.