Kaelyn is a distinctive girls' name in United States, ranking #521 in 2005 with 562 recorded births. The name reached its all-time peak in 2009 with 997 births ranking #332. Since 1996, the popularity has increased by 88.6%. In 2005, approximately 1 in every 3,288 girls born was named Kaelyn. STABLE Recent data shows the name is currently stable.