Jaelyn is a distinctive girls' name in United States, ranking #501 in 2005 with 606 recorded births. The name reached its all-time peak in 2008 with 1,014 births ranking #332. Since 1996, the popularity has increased by 369.8%. In 2005, approximately 1 in every 3,049 girls born was named Jaelyn. FALLING Recent data shows the name is currently falling.