Joslin is a distinctive girls' name in United States, ranking #2872 in 2008 with 62 recorded births. The name reached its all-time peak in 2010 with 67 births ranking #2677. Since 1996, the popularity has increased by 195.2%. In 2008, approximately 1 in every 30,495 girls born was named Joslin. FALLING Recent data shows the name is currently falling.