Joslin is a distinctive girls' name in United States, ranking #4037 in 2013 with 37 recorded births. The name reached its all-time peak in 2010 with 67 births ranking #2677. Since 1996, the popularity has increased by 76.2%. In 2013, approximately 1 in every 47,417 girls born was named Joslin. FALLING Recent data shows the name is currently falling.