Jaelyn is a distinctive boys' name in United States, ranking #2937 in 2015 with 40 recorded births. The name reached its all-time peak in 2009 with 102 births ranking #1584. Since 1996, the popularity has increased by 185.7%. In 2015, approximately 1 in every 47,906 boys born was named Jaelyn. FALLING Recent data shows the name is currently falling.