Joslin is a distinctive girls' name in United States, ranking #3329 in 2011 with 49 recorded births. The name reached its all-time peak in 2010 with 67 births ranking #2677. Since 1996, the popularity has increased by 133.3%. In 2011, approximately 1 in every 35,894 girls born was named Joslin. FALLING Recent data shows the name is currently falling.