Joslin is a distinctive girls' name in United States, ranking #15988 in 2025 with 5 recorded births. The name reached its all-time peak in 2010 with 67 births ranking #2677. Since 1996, the popularity has decreased by 76.2%. In 2025, approximately 1 in every 321,453 girls born was named Joslin. FALLING Recent data shows the name is currently falling.