Joselin is a distinctive girls' name in United States, ranking #755 in 2007 with 387 recorded births. This places Joselin in the top 4% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2007 with 387 births ranking #755. Since 1996, the popularity has increased by 350.0%. In 2007, approximately 1 in every 4,968 girls born was named Joselin. FALLING Recent data shows the name is currently falling.