Joselin is a distinctive girls' name in United States, ranking #1139 in 2005 with 205 recorded births. The name reached its all-time peak in 2007 with 387 births ranking #755. Since 1996, the popularity has increased by 138.4%. In 2005, approximately 1 in every 9,013 girls born was named Joselin. FALLING Recent data shows the name is currently falling.