Joselyn is a distinctive girls' name in United States, ranking #688 in 2015 with 416 recorded births. The name reached its all-time peak in 2007 with 1,577 births ranking #221. Since 1996, the popularity has increased by 30.4%. In 2015, approximately 1 in every 4,290 girls born was named Joselyn. FALLING Recent data shows the name is currently falling.